Germans were salty about being bombed and Germany destroyed. They were also occupied for years and also victory forces made sure the victory was absolute - no peace agreement but armies everywhere. There were other aspects too - like nazi doing a lot of destruction of the Germany by themselves. Germans back then seen the whole thing as a tragedy for Germany and Germans.

The rebuild phase where allies put a lot of effort and money into rebuilding Germany did a lot to ensure good result there. And you still see fascists being popular in Germany, especially in former easter block. It is just that everyone else is still traumatized by the past, school system make sure everyone knows past and nazi propagation is literally illegal.