People attending an outlawed protest get rounded up and identified, news at 11.
No, seriously. There have been plenty of pro-Palestine protests in Germany getting permits, there also have been plenty of pro-Palestine protests in Germany which got outlawed. The reason? Different organisers. Different capacities of those organisers to make sure that the protesters won't commit crimes. Courts overruled some of those police assessments, but not all.
Like, people were up in arms even before all this went down that the Nakba protests in Berlin got outlawed. They completely ignored that in previous years, the same organisers held protests and those turned violent, broke out into "gas the Jews" chants, and whatnot.
As the Basic Law says: Every German has the right to peacefully assemble without weapon. The "German" part is usually ignored, also foreigners enjoy that right in practice. The "peacefully and without weapons" part OTOH is not negotiable.
Part of this is a cultural problem: The organisers don't seem to understand how protesting works in Germany, what the do's and don'ts are. And when they cross those lines, things get out of hand, public order is infringed upon, they try to play the victim card.
Do you know how much German police or Germans in general care if you call us Nazis? How much that stings? I'll tell you: Zero. Because we know you're full of shit.