given that the question doesn't stipulate that the ussr stays out of other countries' politics, probably more red at least until the fall of the ussr, and then who knows?
the question kind of assumes a success of the truman doctrine and an accuracy of the domino theory, which i don't know is correct
i dont think it's likely that the us won the cold war because democratically-backed-capitalism was worse than non-democratically-backed-state-capitalism