Nobody here is pretending all speech is good.

The point many people here have is that if you only defend non-offensive speech, you’re not for freedom of speech at all. Nowhere on earth bans what they consider non-controversial, inoffensive speech.

All of this was well understood in, say, 1975. The tension you're describing is why the ACLU's hardline stance on speech and the rights of the accused has always been controversial and deeply unpopular in some circles. Without putting too fine a point on it: that's literally what made them the ACLU.