And I’m free to criticize their censorship, and the way they lie about it.

If the only reply left is “Well, they can legally do it!” (assuming their lies about said censorship aren’t legally problematic), that’s very telling. It completely ignores the question of morality, especially when the platforms in question have so much control over society.

Lots of things are legal. That doesn’t make them right. In some cases, they’re very wrong.