I doubt it. I'm not a historian, but my sense is that absent the death camps and and silly wonder weapons, Germany would have been perhaps 10% or 20% more effec

I doubt it. I'm not a historian, but my sense is that absent the death camps and and silly wonder weapons, Germany would have been perhaps 10% or 20% more effective -- not 100% more effective. Stalingrad would probably have wrapped up a bit more quickly -- but Moscow, London, and points beyond would all have become the new Stalingrads. Which would not have been a happier outcome, on the whole. [Edit]: Also, it's not entirely clear who would've been the "bad guys" in this alternate-history. The German death camps were certainly the evilest single element of the war -- but the Allied policy of mass-firebombing civilian population centres was arguably the second evilest element of the war, and the Russians were very nearly as nasty as the Nazis to whomever they occupied. Absent the death camps, the moral clarity of that war would have become significantly muddier -- although Germany would certainly still have been the aggressor.