Freedom of speech vs These hands are free too

Tyra • Fluent in profanity & sarcasm | Aggressively positive♥️

Where do you draw the line between hate speech and freedom of speech? How do you define hate speech and at what point can a public conversation or campaign go from exercising their freedom of speech to being hate speech? If someone does cross the line from freedom of speech to hate speech (In a public place) should it be okay for other people to act violently (of course not killing or severely harming them though)