Annoying how little people know about history

So? Competing leftist organizations are never EVER nice when one sets out to dominate or replace the other. That's called both history and reality.

Different brands of socialism and communism don’t necessarily mean they are allies. Karl Marx’s most fierce criticisms were for people who had the same goals he did, only a different method to achieve them.

Yes, but nazis were not one of these brands. Nazis even identified themselfs as the most right-wing party in the german parlament.

True right wing isn’t Nazi or fascist. By that standard the communists of North Korea are a democratic republic and China a people’s republic. Here’s an easy way to summarize the left-right paradigm: leftists want more centralized control and greater government. Right wing would be more individualist with a smaller government and less invasion on personal freedoms. In other words, a true right wing movement would be Libertarianism or other such movements. Since the Nazis were obviously more central-controlled over many things including basic freedom of speech, press, gun ownership, racial superiority etc they have more in line with leftists than with the right.

That makes no sense at all