McCarthism was as much anti-fascist as it was anti-communist, but of course commies would rewrite history to play the victims. Read the actual laws, it never mentions communism without mentioning fascism in the same sentence.
The principle is simple: avoid flamebait to reduce flamewars.
I consider your crime worse than murder... I believe your conduct in putting into the hands of the Russians the A-Bomb years before our best scientists predicted Russia would perfect the bomb has already caused, in my opinion, the Communist aggression in Korea, with the resultant casualties exceeding 50,000 and who knows but that millions more of innocent people may pay the price of your treason.