I have views that lots people on social media will disagree on, but unless they are far-right, I think its still not exactly completely hostile.
But here, oh boy, if you aren't left enough, you are a "fascist".
By Lemmy standards, most people I've talked to would be "fascist". Your uncle with a small bussiness complaining about a liberal politician? Yep he's literally adolf hitler. Your grandma that only ever gets fed propaganda? She's no different from someone cheering at the gas chambers. Your male classmates that never had good influence in their life and fell into a manosphere rabbit hole because the left abandoned young men, and they just wanna feel better and be "alpha" (or whatever it is they say)? Oh yea according to Lemmy, we should just shoot all these people. Shoot your grandma cuz its her fault for watching propaganda. Your uncle is a nazi because he has a stuggling bussines and got swindled by a politician. Dont even bother teying to talk to your conservative neighbor, Lemmy commands you to shoot them on sight. Everyone is evil unless they are 100% Socialist.
I would say Lemmy is better than 4chan or someshit like that, but its not some internet paradise.
But at least you wont get called a slur here, thats the best part about far-left spaces over the far-right. Radical racial inclusivity and pro LGBTQ is the best thing about Lemmy, even when toxicity happens, at least your race or sexual lifestyle is never criticized. But "more accepted" is not exactly the right word.