Reddit’s far left can be pretty toxic too. As an old liberal myself, I don’t believe that there are any good kinds of hate or discrimination, but if you argue against that kind of crap, the absolute worst people come out to defend it. A good chunk of my negative interactions have been with those people.
That being said, the Eternal September is real. I don’t know anyone in real life who actually thinks like that. The trouble is, if you have ten million users, a tenth of a percent of them could be assholes and that’s still 10,000 obnoxious assholes.
I wonder if that has anything to do with the popularity of subs that are about disliking things or groups of people. That kind of shit drives engagement but turns communities toxic really fast.
I use(d) RIF, which let me filter subs out of my feed and the experience has been a lot less horrid, except for when those subs leak their toxic waste into other discussions, which happens way to often.