One other point.

I believe that the rise of fascism, was in part due to a response to the bogeyman of the day, namely communism.

What the German population may have seen in all those uniforms and parades etc was possibly a response to the imagined or real threat that communism presented.

One of the reasons that many prominent Americans were on board with the early Hitler machine was the fear that communism/socialism was building up steam here in America and in Europe.