I know it's said the several fascist movements around Europe during the 20s and early 30s started because of the fear of Communism/Bolshevism's increasing popularity and power over Europe.

But was the supposed branch of nazism, the Strasserism, part of the "communist threat"?

I'm confused about it, because while the Strasserist ideology had many aspects of socialism and even communism in it, it was still relatively fascist in nature. So what "side" was it on?