I don't know what you're trying to control for, but I'm trying to stop genocidal groups from consultating power. You've got nothing to contribute other than hoping there's someone left to hold the genocidal dipshits to account after they've committed that genocide.

Causing a stampede by shouting fire in a crowded theatre is not the same thing as expression of free speech.

You're stopping that expression - it's censorship. It might be censorship you like, but you can't pretend it's not censorship.

distributing, and downloading CSAM are most certainly criminal acts. And rightly so.

Again, this is squarely within the definition of censorship. I don't know why you'd raise the legality in a discussion of morality - surely you don't think legalising genocide would make it acceptable.

Banning membership of a group that aims to oppress and kill huge groups of people is a pro-freedom move.

Please don't make me put a dictionary in front of you.