The death of even more Soviet soldiers won't stop communism's appeal in the Third World, nor will it stop the colonial devastation which caused the emergence of so many dictatorships across the Third World. If anything, a USSR which had to work even harder is even more appealing. Add to the fact that the colonial powers will be putting even more resources into the war because with less Soviet help it'll be longer, and I expect even quicker decolonization with communism an even more appealing ideology than OTL.
A longer Holocaust would hurt the world. Who knew?
A longer Holocaust would hurt the world. Who knew?