The difference between the Holocaust and Communism is this.

I get taught all about the Holocaust at school, and how bad it was, and told about the Museum in Washington D.C.

I don't get taught about the Communism scares and threats that were prevalent during the 60's and 70's. Its a laughing joke, that such a corrupt nation could have survived.
I wasn't around to be scared by Commies, maybe you were, but I wasn't.
Now it's just comedic, silly.
Tfui to Communism.