This is pretty misleading. There was a mix of people good and bad, just like there is now. Plenty of racist and hateful millennials/zoomers as well that lean conservative. Each subsequent generation just likes to pat themselves on the backs and claim they’re better and more enlightened.
I was harassed by them and insulted for not agreeing with them (mistakenly commented in one of their instances posts) and elsewhere and they kept saying certain people deserve to die (which I’d classify as hate speech).
When there’s so many that can bombard or overwhelm the rest of the discussion they should stick to their own echo chamber. I don’t see the same problem you do with defederating from them and am more likely to use the site more without their presence.
Edit: We also don’t know what the mods or admins are seeing and removing from them. I couldn’t even have a conversation without being overwhelmed and shouted out/insulted