How did free speech help when the Nazis humiliated jews publicly in the 1930s?

How did it help taking “jew-baiters” like Julius Streicher to court during the Weimar Republic? Obviously it didn’t.

It seems obvious that I want the state to prevent hate speech, especially against minorities.

You want the state to act against hate speech coming from the elected head of state. What about that seems like a good plan?

You can’t convince people that Trump is a bad guy, and so you want the state to go after the bad guys. Maybe you can convince people that the state should smash bad guys. It’s not hard. But Trump is in charge of the state and not you. He’ll decide who’s a bad guy.