Welcome to Lemmy where there's a lot of communists who are not agreeing with the narrative of liberal, socdems or greens media of US/EU/UK.

Russia is winning because China is communist and therefore winning.
I don't know what the average Lemmy tankie thinks of why the Soviet Union lost,
but my reasoning is simply, lack of solid fossil fuels and too early in the game
to rise through solar & wind power or even natural gas.
China had bitumen coal and a better version of socialist democracy since Deng imho.

US has lots and lots of coal compared to any country in the world,
so even with its half-baked liberal democracy
it still was able to thrive above the rest until recently.