This is essentially what I used to think as well, until I spent more time there. There's some stock phrases busted out, and some users probably leave it at that and don't engage beyond it. However, they genuinely have a deeper framework for an analysis of the world than what you're going to see from conservatives.

Basically as part of their extremely liberal ideology, they analyze things through a materialist lens, even the non-marxist liberals there, and through that there is a lot of seeking out of what material causes and contradictions have lead to where we are which can be really neat.

There is probably some disagreement over what is fascist, what's not, blah blah. But it's really not as simple as "what I don't like is fascism".