African Peasant
Veteran
So what it sounds like is Germany did not have the manpower nor resources to win World War II. Even if they did "defeat" Russia they would have been mired in a years long guerrilla warfare campaign with Communist Partisans which would have numbered in the millions while also attempting to stave off a superior British Air Force and Navy and a massively industrialized United States. We also have to consider what constitutes victory in Russia. Most people assume it would have been the taking of Moscow but there was no indication Russia would have surrendered into submission if the Germans did manage to take the capital and the losses to do so would have been incredible. The Russians were always fighting a battle of attrition with the Germans and they were always going to win eventually, even if the Germans managed to take the Caucus oil fields. It just would have prolonged the German war effort but in no way, shape or form guarantee them a victory.
America still would have developed the atomic bomb and instead of dropping them on Japan would have used them on both Germany and Japan as there were plans to use the bomb in the European theatre anyway but by the time it was ready Germany was already on the floor for the ten count. Germany managing to take the Russian oil fields or Moscow would have only made an already bloody conflict much worse given their renewed ability to wage war but they didn't have the tools in place for an ultimate victory. As long as Russia and America are in the picture Germany cannot win the war.
If Hiter won in Russia, I think the war would've stopped there. I don't think the US was not ready to pay the price the USSR paid, since Hitler had nothing against them in the first place. Russians did not fight against Germany to death because the Nazis were the bad guys (even if they were); they fought against them because Germans were trying to kill them.
If Hitler won, the US and the UK would've maybe share the world with him, instead of Stalin. But I'm not sure anayway.
In any case, I don't see how Hitler could've won against USSR. He underestimated the USSR too much.