Why can't you accept that Germany would NOT win an attrition war with the USSR, especially with lend-lease? The USSR has a far greater manpower pool than Germany. Sorry, but it is the truth.
Hitler lost the war as soon as he started it. Britain had him in checkmate from day one and would eventually defeat him with or without help from the U.S. or USSR
The best thing he could have done is surrender after the fall of France and pray Britain would be generous.
You are expecting the Red Army to essentially display a grasp of mechanized warfare comparable to the Germans overnight.:rolleyes: I would like to think there was an actual reason for their total breakdown at Barbarossa, and one which you choose to ignore.