When I was in school, concentration camps were always described as German (no references to Polish or anything). My kids aren't old enough to go to school, but I doubt that this changed tbh.
Yes, Nazis are mentioned when that time is discussed, but never in my experience to avoid a connection between this country and the deeds done.
German national pride, patriotism, is very very low (I personally don't feel any attachment to this country apart from the fact that I know some places and speak the language).
> "For example, average Dutch will not tell you"
How are the Dutch involved now? Is that a weird "I know 'German' is 'Deutsch' in German" mistake? Or are you randomly talking about people from the Netherlands at that point?