Thus they have to send food to the troops in the East all the way from Germany. And the logistics of their Ostheer collapses in the spring of 1942.
Earlier then that, really.
You are saying that Nazis had to do this to be succesfull ?. thats pretty disgusting attitude imho
That's because we would like to have what is evil also be what is ineffective, but reality is not always so kind as that. The reality is that the Germans didn't have the transport space for Barbarossa to succeed even before you factor in the need to ship the food to adequately feed 3.2 million men and all those supply animals. The Germans had to descend upon the land like a horde of locusts in order to make even the OTL advances, and hence OTL damage to the Soviet military and economy, logistically feasible. The atrocities perpetrated on the Soviet citizenry were not some regrettable unpleasantness the invasion could have done without. Rather, they were a key factor in making the whole venture worthwhile to Nazi Germany.
In any case, racism was such a immense part of the Nazis, and Hitler in particular, madness that pushed them into starting the war to begin with. Without that, odds are good they pull back from the brink. If they
do end up in a war they fight it with much less energy, all while looking for an early negotiated exit, allowing them only very modest territorial gains. Non-racist Nazis would never dream of turning the vast lands of Eastern Europe and the Soviet Union into it's own Congo colonial theme park, which was a pretty core element behind why WWII developed as it did historically.
There's also the motivation angle to consider. Merely being anti-communist wouldn't be a patch on the historical Nazi indoctrination, that was again race-centric, which turned their soldiers into fanatics and inured their officers to the terrible atrocities of the war.