PTB personally, it's documented that Nazis were kept on positions of power in Germany because it was helpful to the Marshall Plan to rebuild Germany to stop the spread of Soviet influence.
From my perspective, the shift towards (far) right politics and populism we experience in Germany is a phenomenom that we see across large parts of Europe and has nothing to do with WW2 nazis still being there. Maybe there are parallels but that ideology re-grew pretty much from scratch.
I'm not trying to argue for the point or against it (it's not even my comment), but the mod's objection being "You can't call a whole nation Nazi" when Nazi Germany was literally a Nazi nation was funny.
Even during WW2 not the whole nation was purely Nazis. The majority was brainwashed and following the cult, yes. But even during its highest peak of popularity, there were always resisting forces against the regime. Right now facism and populism are on the rise again but if you ask me a lot of that is caused by (presumably Russian) troll armys on social media.