They're a straight up communist sub. Why wouldn't they? You seem to be complaining that a board game site bans you when you repeatedly post "board games are stupid, you should play video games."
Toxic and hate speech are recently invented terms to curtail free speech. If I said anyone who wanted communism were hateful (they hate capitalists) and supporting a historically violent ideology, I'd be as right/wrong as people on the left doing the same.
Anti free speech are a means to an end really, power.
I can definitely see a completely open alternative viewpoint, but reddit has already gone in a very different direction.