where is switzerland? on the chart, this often gets touted as the counterpoint
On this chart Norway would also be listed with 29 guns per person. These are owned by only 10% of the population however, and automatic rifles are banned for civilians. I don’t disagree with the sentiment of this meme, but it’s cherry picking data in exactly the same manner as “the other side” would do just for a cheap gotcha argument.

These are owned by only 10% of the population however

Thats the case in America too, iirc like 30% of households have at least 1 gun, and if you assume 4 people per household, and 1.25 gun per American, that means the average gun-owning household has 16 guns.

It makes a lot of sense to own more than one gun. For self defense you might own one shotgun, one handgun, and a smaller handgun for concealed carry. If you’re a hunter, you likely want two rifles in different calibers, a shotgun, and a hand gun. In addition to that you might have an old gun laying around or grandpa’s old hunting gun, a range toy, some historic gun you like for some reason. Sport target shooters will have a few different guns, depending on what disciplines they shoot. Then there are also more serious collectors who might have dozens or hundreds of different firearms.

Yes. What’s the point of owning a firearm if you can’t have a gun for when you’re sleeping in your bedroom, a gun when you’re on the toilet, a gun when you’re on the couch watching the TV, a gun when you’re at the front door greeting guests, a gun when you’re driving your F150, a gun for that second amendment right, a gun when you go grocery shopping, a gun when you go buying clothes, a gun to go with your Tony Montana cosplay and you know, a gun just for fun. What are you supposed to do? Go outside without a gun? Use one gun for all those things? Don’t you know switching to your sidearm is always faster than reloading?

You don’t need all those guns. You want all those guns.

Who are you to tell how many of those someone needs? If someone isn’t a murderous psychopath it does not matter how many guns they have cause exactly none of them will be used on a person.

Let’s me rephrase it then. You can want to have all those guns but it’s not sensible to have all those guns.

The argument here is that it’s sensible to have so many guns. It’s not sensible because even among Americans the median gun owner owns 2 guns. You don’t need a shotgun, a handgun, a concealed carry gun and a whole other set of guns for hunting and whole other set of guns for the shooting range etc. That is not sensible, that is just someone wanting a whole lot of guns.

The Stock and Flow of U.S. Firearms: Results from the 2015 National Firearms Survey

Since the mid-1990s, the U.S. civilian gun stock has grown from approximately 192 million (65 million handguns) to approximately 265 million (113 million handguns). In 2015, gun owners owned more weapons and were more likely to own both handguns and long guns than in 1994. As in 1994, ownership in 2015 was highly concentrated: the median owner owned two, but the 8 percent of all owners who owned ten or more accounted for 39 percent of the stock. Approximately seventy million firearms changed hands within the past five years (from 2011 to 2015); most were purchased. Two and a half percent of Americans had guns stolen within the past five years, accounting for an estimated five hundred thousand guns per year.

RSF: The Russell Sage Foundation Journal of the Social Sciences
TBH if you’re a hunter you DO need different guns, because a gun for deer is overkill for something like wolves/boars but mostly useless against something like a bear. But aside from that, if I did live in the US I would be a collector, but the only guns I’d seriously plan to buy brand new would be a carry pistol, a shotgun, and a rifle.