It's not just far-left Xitter (pronounced with "sh" instead of the "X" sound) that has lost its mind. Until recently I was on BlueSky, an app trying to replace it, and oh boy...those people are insane. There are literally people saying that we should all be willing to do what Aaron Bushnell did.
Can confirm. I have one of my coworkers on Blue Sky, and he's pretty intelligent and uncombative in real life, but man, he's a straight-up leftist radical on there, and has actually gathered a pretty substantial group of followers, at least by Blue Sky standards.