except people who supported the dominant social/political movement at the time
Nope, actually they were purged the most. But it's really irrelevant.
you can leave reddit, but it is much harder to leave the zone controlled or influenced by pro-censorship people like you. unlike real life (in sane first world countries at least), the internet does not have public places where access to your speech isn't controlled by private entities with no legal obligation to not censor you.
So you're a penniless hippie who can't buy his own server and demand that other "private entities" give you a platform for free.
And that's not even going into the part where we were talking about
/r/programming, not reddit as a whole, and anon's indignation about them censoring the github cocfight.
Admit it, you don't want the right to
speak, seeing that you have that already on KiA for example. You want the right to force people to listen to you.
As a person who values personal freedoms I fully support censorship and other oppressive actions against the assholes like you who don't.