Germany has a history of its government using data collected about citizens against them.

Much legislation was created after WWII to try to prevent that from happening again.

It hasn't stopped the German Interior Ministry from campaigning for EU-wide chat control and pushing to reinstate mass data retention

That's because this campaign is about changing that very law. Saying that "this is blatantly illegal" misses the basic point of this proposal being a CHANGE of the law that makes that illegal.