Every legitimate protest throws those kind of people out. They don't. You may want to ask them why. Funnily enough many of those "protests" are organized by known extremists or those party members.
They want to be accepted by the majority? Then they need to stop walking with literal Nazis.
BTW I just found this https://www.welt.de/politik/deutschland/article236205086/Ver... by accident.
So even the Verfassungsschutz is saying that the majority of the protesters are "usual citizens".
I don't want to persuade you of anything. You can think what you want. You should just leave the same freedom to others and not frame them because some nutjobs are part of a protest..
Have a nice day.