The OP (and myself) consider freedom of speech is an ethical right that everyone should support. I live in the UK, we don't have a first amendment, but I still support freedom of speech.

The viral video in Baidu this week is of a student activist in Hong Kong who supports freedom of speech, and her speech (independence for Hong Kong) is explicitly illegal.

After we let people speak, and we dislike the speech, we can can then mock, disagree with, and poke fun at it, using our own freedom of speech.