Your point was that they're racist, sexist, and ableist, and thus will not convert to socialism, no?

My point is that people who held bad attitudes or engaged in bad behaviors in the past can change - not everyone who says this kinda shit is ready to jump up and join the KKK, for a lot of these people it's just a casual edgelord identifier. Obviously it doesn't make that okay, but those folks can still be radicalized, and a space where people stare into the contradictions of capitalism as a hobby are ripe for it.