A free speech primer …

… How To Spot And Critique Censorship Tropes In The Media's Coverage Of Free Speech Controversies | Popehat.

"Hate speech" means many things to many Americans. There's no widely accepted legal definition in American law. More importantly, as Professor Eugene Volokh explains conclusively, there is no "hate speech" exception to the First Amendment. Americans are free to impose social consequences on ugly speech, but the government is not free to impose official sanctions upon it. In other words, even if the phrase "hate speech" had a recognized legal definition, it would still not carry legal consequences.

This is not a close or ambiguous question of law.