The norm used to be that as bad as hate speech is, bad speech is the most important type of speech to protect because no one tries to ban speech that they like.

The norm used to be that as bad as hate speech is, bad speech is the most important type of speech to protect because no one tries to ban speech that they like. This was recognized as important because invariably the powers that be change hands and then people with very different rules on what speech is bad get to use the same tools to suppress speech. That is why you had the ACLU defending the rights of nazis to hold rallies: https://en.m.wikipedia.org/wiki/National_Socialist_Party_of_America_v._Village_of_Skokie https://en.m.wikipedia.org/wiki/National_Socialist_Party_of_... which would likely not happen today