Nothing is stopping you from expressing yourself however you want - just elsewhere, if you can't follow the rules.
fwiw, this very website has its own code of conduct: https://news.ycombinator.com/newsguidelines.html
It focuses on different things than the Wikimedia one, but it's fundamentally the same thing. For both of them, I'd suggest that if there are things that you feel are detrimental, you specifically address them.
Making an empty comment like "new wave of censorship" achieves nothing except saying "I don't like the rules". In which case, fine, there are plenty of other places on the Internet.
> Codes of conduct aren't censorship... It is essentially a list of "how not to be an asshole".
It would be great if that were true.
But it's not, and we both know that.
A Code of Conduct a thinly-veiled justification to harass and bully your ideological opponents.
There's an XKCD that talks about this. Dumbest thing Randall Munroe has ever written: https://xkcd.com/1357/
You can "show someone the door".
And there will be a welcome mat, doughnuts, and a lot of friends on the other side.