How to make a Communist State: Germany/France Edition

So, I am looking to create an alternate timeline where Trotskyism, Stalinism and Capitalism face off in a three-sided Cold War after WWII between the joint and temporary Trotsky-Stalin alliance, and Hitler/Petaín and his friends: Mussolini and Mosley, but I am not sure how to (plausibly) pull this off. I was thinking either a successful German Revolution, or a Second French Revolution (and ensuing French Civil War). So, to do either the Second French Commune or the Räterepublik plausibly, how can I do this? And if not, any (plausible) ways to make my Trotsky v Stalin v Capitalism Cold War plausible?
 
Sorry to burst your bubble, but Trotskyists parties were not that popular, well, anywhere. There were a few trotskyists deputies in France in 1936 (in the PUP i think) but they were a small minority, like everywhere. You need a very early PoD for that, which would probably change the Soviet union itself and the communist movement worldwide for Trotsky to have that much influence.
 

Anaxagoras

Banned
The only difference between Trotskyists and Stalinists would be superficial. The reality on the ground would be pretty much the same.
 
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