What’s the statistic? 80% of German casualties occurred on the Russian front.
The ideal situation would have been to let Germany and Russia bash each other’s brains out for another 3 years or so before entering the war.
I always felt the best case scenario.....Hitler takes Moscow, Stalin is overthrown in a coup led by Khrushchev, who is pragmatic enough to understand that to truly unite the people and win the war he must abandon Bolshevism.