Earlier quoted context omitted.
Why is what right wingers do speech that should be protected, but not what the "Zentrum fuer politische Schönheit" does? There's a certain hypocrisy in all right wing demands for free speech. They always mean freedom of their speech, not of people they disagree with.
There is quite a difference between "speech" and what ZfpS does. Their actions are often criminal, and not in the sense of "political crimes" but actually criminal acts that have nothing to do with speech or opinions. They have doxed people and called for violence against them, they have exhumed dead children and paraded around their corpses, stolen things, stuff like that.
That's why people say that taking away the rights of one group is like taking it away for everyone.