Just because something is popular doesn't mean it is wrong, though. And it may be that people in power find something obnoxious because it is obnoxious.

In either case, "political correctness" is only an exchange of tokens of respect. A transaction of political capital. "If you speak in a culturally respectful manner then I'll listen to you. Otherwise, I won't."

That's not violent. That's not suppressive. That's not censorship. It is judgmental, but that's only a necessary feature of having good judgment.

When you find yourself unable to legally express an idea, then you are in trouble. You are not in trouble if nobody listens to you because you are inarticulate. (In that case, you are probably just stupid.)