German police have used excessive force against protesters, with the latest developments including children being arrested and women facing sexual violence
They didn't realize the problem with the holocaust was the genocide bit, instead of the Jewish part. That's the only explanation for this behavior: they keep talking about their mistake, but obviously learned the wrong lesson.
Remembrance is so deeply ingrained into our society, that a lot of people in power are struggling to even criticise Israel.
Add to that highly emotionally charged discourse and frustration in the general public at these protests plus cops being cops, jumping at an opportunity to bash lefties and you get this bullshit.
They should remember the genocide properly and not want to repeat it upon any ethnic group. Unfortunately, all they remember is that Jews were involved. I guess the concept of "genocide" is a little too complicated for a Nazi to recognise.