So in the universe of Kaiserreich, the mod for Hearts of Iron, the Bolsheviks (sadly) failed in their revolution.
As a result, Marxism-Leninism became largely discredited. Hence, it was replaced by the Syndicalism we hear about in the game.
However, there is another socialist ideology (well, two, which is called Radical Socialism, but it doesn’t have much to do with the following) in the game known as Totalism, which consists of a lot of authoritarian socialists in that universe. As a result, communists are often featured as Totalists.
Which would have been based if it weren’t for the fact that:
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The symbol for Totalism in-game is very similar to the fucking Strasserist symbol.
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Benito Mussolini and Oswald Mosley and other literal fashies in OTL are depicted as Totalists.
So basically, in that alternate universe, horseshoe theory became a reality.