So the Demsheviks who support antifa either openly or tacitly, are the party of fascists. The original German antifas were anti-fascist in the sense of anti-NAZI party, as they were the Communists. When the National Socialist party won the election, many antifas then joined them.
Socialist, communist, just different names for the same evil ideology.
Actually the original antifa was the Communist Party militia. It was banned under the Weimer Republic and reorganized a few months later. And they were opposed to more than the Nazis, their primary target the Weimer Republic. At the time, at least among communists, there was a concept called social fascism, essentially that social democracy, or democracy, was an enemy of the proletariat. Capitalism was called out by name. Defined by the Soviets in the late 20s, the term eventually fell out of usage. To a communist of the time, the US and most of Europe fell under the social fascism umbrella. Thus anti-fascism entailed far more than just opposing the Nazis. Under that definition, the head of the Social Democratic Party of Germany considered Stalin a fascist. Trotsky was accused of being a social fascist. Democratic, capitalist nations, obviously. So anti-fascism in no way means opposition to Nazis, and in the antifa sense it clearly means opposition to democracy and capitalism.