Anyone else find it curious (almost) no one argues that "National Socialism didn't fail because the Third Reich wasn't /really/ National Socialism"?

It's interesting to contrast the utter repudiation of National Socialism after its defeat in 1945 compared to the ongoing romance with Communism after its collapse in 1989...

E.g. On a university campus today, it's acceptable to call oneself a socialist, but utterly unacceptable to call oneself a National Socialist (a Nazi). Considering the horrors of both, the difference in their treatment in American academia today is somewhat surprising.