I'm puzzled why Facebook is getting the blame here. If you are seeing toxic content in your feed, it's because your friends put it there. It's not Facebook's fault that your friends suck.
Not really. Facebook put it there for me. Time and again it shows me items like "[Friend] replied to a comment on [toxic thing]", where the thing gets a prominent preview etc. I haven't seen a real update from [Friend] in my feed for months, yet there are plenty when I visit their profile. Even if the friend is fighting the good fight and has commented to correct some misconceptions, it's clear that this particular action was selected for my feed because it's related to a controversial item.
If it weren't for comments from non-friends, Facebook would have no toxic content for me at all.
Facebook was great until it started inserting posts from people I didn't explicit whitelist as friends, and I'm including news articles in that category.