
Because those exceptions are based on objective forms of speech that incite imminent violence, not subjective offensiveness Using your logic, what would stop the government from saying all forms of inflammatory speech are hate speech? Protections for freedom of speech are a safeguard from government overreach
There are already laws that prohibit imminent lawless action and incitement of violence. Inflammatory speech is not the same as that. Publicly saying “I hate ____ group of people” is not the same as “I am going to kill ____ group of people tomorrow”. Many hate groups and people affiliated with them are already under surveillance by Law Enforcement because of this