Because those Americans are entitled, insecure, ignorant, xenophobic assholes.

It’s called xenophobia, the fear and dislike of anything foreign. Some people believe that if your group isn’t dominant it will be dominated, and peaceful coexistence isn’t possible between different groups.

These people are afraid that, if the English language isn’t forced onto other people, one day other people will force a foreign language onto them.

americans dont seem to understand there is an entire world outside of their country

Could it be that the person saying it because he thinks those person could be talking about them and it makes them uncomfortable.

There is also hindi quote “peeth piche burai karna”

It’s good old-fashioned xenophobia and is by no means unique to Americans or English-speakers even in the modern era. Anyone who has spent enough time in certain parts of France, Italy, or Belgium has probably encountered it at some point.

It’s everywhere but it is probably most prevalent in countries with a strong nationalist core and, in my opinion, ironically occurs most often in countries that have really fucked around with having an empire in the last century or so.

Because people should be speaking American in America

Ignorance. The US doesn’t even have an official language lol

Forgiveness answer: At least for me, hearing someone speak in a foreign language near me if I’m trying to do something is like Kryptonite for my concentration. I basically just have to leave and go somewhere else, or else abandon the idea of getting something done until it stops. It’s just impossible for my brain to not pay attention to it. I don’t think I would ever blame it on the person who’s just trying to have a conversation, and if I’m just standing in line or something it doesn’t bother me, but I do understand how it can be irritating.

Probably more realistic answer: Because living in America leads to a spiraling hell of stress and unhappiness, and so if you’re an asshole, and some innocent person presents themselves that you can take it all out on for literally any made up reason at all, then it’s go time. Also explains a lot of taking it out on customer service people for literally no reason at all.

Because they’re stupid and racist. They feel like they’re left out and dont know how to parse it. Some also think that anybody speaking in a language thats not English in America have something to hide. When really its just what they’re comfortable using. Forcing everyone to use and learn English at all times is like forcing everyone to use the same text editor at all times. Not everyone is comfortable in Vim or Emacs, and everyone should probably know a little about another editor rather than just their favorite. Which brings me to my final point: our education system has failed us.

You will understand why better when you take a look at who they say this to and who they don’t.

This is not something that generally happens to white people speaking some French in the US. It does not raise the ire of this psychology. On the other hand, they love to target brown people speaking Spanish (almost exclusively, in fact). There is, naturally, spillover where white people speaking Spanish or brown people speaking Hindi would get targeted.

As others noted, and as these examples suggest, this is an instance of xenophobia and racism. Language is being used as a proxy, really, and provides a way for these people to unleash the frustrations they have been taught, societally, to have against them. Generally speaking, these are people that will call any brown person that speaks Spanish a “Mexican” regardless of their actual place of birth, where they were raised, or ethnic heritage.

But this is just a surfacr-level analysis. The next question is why they are taught to target people with xenophobia and racism. Why are there institutions of white supremacy? Why are their institutions of anti-immigrant sentiment? How are they materially reinforced? Who gains and who loses?

At a deeper level, these social systems are maintained because they are effective forms of marginalization. In the United States, racial marginalization was honed in the context of the creation and maintenance of chattel slavery, beginning, more or less, as a reaction to the multi-racial Bacon’s Rebellion. In response, the ruling class introduced racially discriminatory policies so that the rebelling groups were divided by race, with black people receiving the worst treatment and the white people (the label being invented for the purposes of these kinds of policies) being told they would receive a better deal (though it was only marginally so and they were still massively mistreated). This same basic play had been repeated and built upon for hundreds of years in the United States. It was used to maintain chattel slavery, Jim Crow, and modern anti-blackness. It was used to prevent Chinese immigrant laborers from becoming full citizens and becoming a stronger political influence in Western states.

It was and is used to maintain the labor underclass of the United States, which also brings us to xenophobia more specifically. The United States functions by ensuring there is a large pool of exploitable labor in the form of undocumented immigrants. It does this at the behest of the ruling class - the owners of businesses - who have much more power to dictate wages and working conditions when it comes to this labor underclass. They make more money and have more control, basically. But this pissed off and pisses off the labor over class, as they have lost these jobs (or sometimes are merely told they lost them even if they never worked them). To deflect blame away from the ruling class for imposing these working conditions wages, the ruling class instead drives focus against the labor underclass itself, as if working that job for poor pay and bad conditions their fault. This cudgel should remind you of Bacon’s Rebellion again: it divides up workers so that rather than struggle together they fight amongst themselves on the basis of race or national origin. The business owners are pleased, having a docile workforce to exploit.

So while racism and xenophobia are themselves horrific and what is behind the "Speak English!’ crowd, it is really just an expression of the society created by this system that, by its very nature , pits workers against business owners while giving business owners outsized power (they are the ruling class, after all).

Another important element to this is imperialism and how imperialist countries carefully control immigration (it used to be basically open borders not that long ago). But I’ll leave that for any follow-up questions you might have.

Entitlement. Simple as.

All this talk of xenophobia and racism, which I get are indeed often reasons why people do this, but there’s a certain show of lack of respect for the new home country if there’s not even an effort made. If someone is visiting a country, I get there’s an exception, but if someone moves to a country, it shouldn’t be uncalled for to expect at least a minor effort to learn just enough of the new language to transact/survive. That’s something I see a lot as an American, and it frustrates me- Folks who move here and have been here for years, but can’t learn enough to at least sort of transact. I have so much respect (often more for them than natives) for those who learn even a couple words so I can do my job to help them, but then there are folks who I’ve seen for years that still refuse to learn a single word of English, so we play the mime game trying to figure out what they want. If I move to another country, you bet your ass I’m not going to expect them to speak English, and I’ll do what I can to at least learn some words or phrases so I can interact with the populace around me. I feel like that is one of the most significant forms of respect for a new home country that one can show. Not everyone is as nuanced in their outlook and opinions, and a lot of those folks are indeed racist xenophobic.

They are bigoted and racist.

Because anytime someone speaks a foreign language in their presence they must me talking bad about them. After all its what they would do.

Probably because most Americans can’t speak any other language… because our education system is awful… because those in power prefer a stupid populace because they’re easier to control.

Because humans are assholes. That’s it, the entire reason.

They can't be nosey if they can't understand you.

I do not give 2 shits about people speaking foreign languages out in the ether for the most part. Having said that, there are 2 instances I can think of that grind my gears.

You order an Uber, and the guy who’s driving is on the phone with someone, and is speaking another language with them the whole time. This is more just for the fact that this is shitty customer service for someone who works on tips to an extent. For whatever reason, this seems to only be an issue with foreign speaking people. My guess is maybe they’re talking to family back home? I certainly don’t tip those people who are doing it, but I don’t care enough to call them out on it either.

As a poker player, they have rules about speaking English only at the table. This prevents collusion. I will absolutely call people out for English only at the table especially when there is a live hand going on.

Those who say this are usually frustrated by the increasing number of misunderstandings/miscommunications due to increasing English illiteracy. Its become more difficult to communicate to those around you.

It’s utterly unacceptable behaviour but I believe the issue lies deeper than simple “racism”. I also sometimes find it frustrating from the sheer volume of people that can’t speak English, from coworkers, customers, fellow students, etc. I don’t even live near the border, where the problem is much worse.

We’re British imperialists at the end if the day. We traveled across the seas to a new continent and destroyed it for… So little benefit

I find the type of people that get angry at those that don’t speak English, usually have not a single interesting thing about them so they use English as an excuse to feel superior. It’s funny because the type to get angry at another language, rarely can speak English better than a 4th grade level.