To you and the OP's point, if I am understanding where you are going with this, Twitter previously had a right to remove people it didn't like, as they should.

To you and the OP's point, if I am understanding where you are going with this, Twitter previously had a right to remove people it didn't like, as they should. That seems fine. Although there is no obligation to provide any reasoning, I think it would have been better for Twitter to just say "yes, if you are ____ please don't come on here". I don't think it would have even had any consequences. It's not even weird given how social media sites tend to self segregate. Instead we got lectures about policies and disinformation and algorithms and moderation teams. Why not just make explicit rules?