AHC/WI: An alternate Cold War… between Fascism and Communism only

Alternate Cold War scenarios are fairly popular, but all the ones I’ve seen deal either with a Cold War between fascism (usually Nazi-dominated Europe) and liberalism (the US and its allies), or with a three-way Cold War between liberalism, fascism and communism.

But I don’t think I’ve ever seen a scenario where liberalism was taken out of the equation, and the major competing ideologies that remain were fascism and communism. The reason is obvious of course: as long as the US remains a liberal capitalist country, liberal democracy will be a major force in any hypothetical Cold War scenario.

The obvious solution would thus be for the US to either embrace fascism or socialism, while Europe (at least most of it) is conquered by a fascist or a communist power during WW2. With both Europe and the US under either fascist or communist governments, there wouldn’t really be any liberal democracies left in the world, other than maybe Australia and New Zealand. But how could such a scenario be achieved?

I think the only plausible way for the US to ever come under the rule of either a fascist or communist government would be as the result of some kind of civil war in the wake of the Great Depression. If the US is busy fighting itself when WW2 breaks out in Europe, then there’s a good chance that Nazi Germany would be able to win the war. No US involvement means no Lend Lease or any other kind of material or military support for Britain or the USSR. This could thus lead to a Nazi victory in Europe, while the civil war in the US is eventually won by the communists/socialists, which would lay the groundwork for a possible Cold War between a communist US (probably including Canada) and Nazi Europe.

Of course, the opposite is also possible, with most of Europe being conquered by the Soviets while the US becomes a fascist power.

How would a Cold War between blocks of fascist and communist countries look like? Which side is more likely to emerge victorious? Are there any other plausible ways to achieve such a scenario?
 
I think the best option for this is some sort of Krasnacht esque scenario. The Bolsheviks lose the Russian civil war and a far right ultranationalist regime emerges in Russia. sometime in the 1920s or the 1930s socialism takes root in US after a sucessful revolution(maybe less repression after WWI, gilded age continues much longer--maybe a 19th century pod is needed). You'd then have to prevent them from going to war with each other. Maybe Hitler still comes to power and we get fascist vs fascist Operation Barbarossa, and have the Russian ultranationalists perform a bit better or around the same as Stalin did OTL. Alternatively, Italy and Ultranat Russia guarantee Austria when Hitler push for Anchluss, and they curbstomp Hitler whan he goes for Austria anyways. So this will lead to a fascist Europe vs. a Socialist US.

The reverse Krasnacht scenario could also happen, say the Communists come on top in the 1919 revolution in Germany, and Bela Kun maintains power in Hungary. Finns win the Red civil war. This spurs a wave of far right sentiments in western europe and the US goes through something akin to a "business plot" in the 1930s.

(Yeah I just shamelessly plugged in the HOI4 mod that I'm involved with in development right now, which is a sequel to Kaiserreich and features socialist US+western Europe vs "Voynist" Russia, voynism being our equvilent of Fascism)
 

BigBlueBox

Banned
The obvious way this comes about is by the Molotov-Ribbentrop Pact never being broken. Britain is broken into a second tier power after the Axis focus on the Mediterranean. America either remains isolationist or regresses into authoritarianism.
 
Top