Why is there such a large amount of communist and transgender related posts on the Fediverse compared to other websites?

https://lemmy.world/post/2062952

Why is there such a large amount of communist and transgender related posts on the Fediverse compared to other platforms? - Lemmy.world

I am not criticizing them, I’m just out of the loop.

The Fediverse is home to a lot of young, tech-minded people distrustful of major corporations. The younger generations are more likely to come out as transgender due to greater awareness and acceptance of gender identity and dysphoria, and a decentralised, open platform is naturally going to appeal to communists, syndicalists and other left-wingers who don't want some billionaire buying the next website they get comfortable on. And funnily enough, there are a surprising number of trans people in the tech sector, to the point where trans-flag socks have become a meme among programmers.
This seems like the most straightforward answer. But it doesn’t explain why people on the right haven’t come to the fediverse in proportional numbers. I know a lot of right leaning Libertarian communities, and for some reason they like cryptocurrency and FOSS but not the fediverse.
There are right-wing instances of Mastodon (gab, truth, and others), not to mention many Pleroma ones, as well as Lemmy (exploding heads, and probably others). It’s just that they get quickly defederated by everyone else for various valid reasons (usually hate and abuse, sometimes even child porn), so you don’t get to interact with them much. They just get stuck in their own bubble.
Does SDF not defederate anyone?
Going by lemmy.sdf.org/instances, it seems that not yet. I haven’t run into any issues though, and have never seen a post from or noticed anyone from exploding heads, thankfully.
Instances - SDF Chatter

Yeah I was going to ask do you see a bunch of spam from them in the new feed? The admin guy posts so much stuff with 0 engagement it’s weird.

Just found it interesting the SDF seems like the most federated instance on here federation-checker.vercel.app weird.

From this link it seems that almost no one is blocking exploding heads… and I just found out that my instance isn’t even blocking truth social 😨
Isn’t this just a good indicator that there might not be a need to defederate? If they aren’t causing problems for your users than it doesn’t seem right to defed preemptively.
Yeah I thought that some people was asking to defederate but not from my instance, it was from beehaw iirc… I agree that if they are not spamming or trolling there’s no need to defederate, but some users don’t like their “if it’s not openly racist/transphobic it’s allowed because free speech”