Well, good that you aren't saying it's personal responsibility. However, if it's a nation state's responsibility, and a nation is just a contruct, who is responsible? anyone elected into office?

*has*

Most of its public administration was rebuilt after the war with the same Nazis in high functions that held them during the Holocaust. And Germany have done insultingly little to clear out these roots

The Germany of today is the legal successor of the third reich and that cannot be discussed away. It is a fact. And that is not even going into moral obligations stemming from that.

Of cause "not"

If people confuse historical responsibility of a nation state with their own personal responsibility then that is exactly the kind of dangerous nationalism that leads societies straight back into fascism.

Of cause just learn from what nationalism done to it