The difference though is that the Allies could spare more resources, while the Axis can’t. German rail lines also keep getting sabotaged and the blockade and air bombing kept the resources to fix them being disrupted or destroyed. The Allies didn’t have such issues on their end. The German trains coming from the Eastern front could have loaded up more wounded but even so, I imagine they would have more limited available train freight because of destruction.

The anti-partisan action by the Axis also took up so much manpower that could have otherwise gone to the frontline. Not to mention that the very same people the Germans killed, could have been soldiers themselves on the side of the Axis. Many Ukrainians welcomed the Nazis as liberators and could have helped the Nazis against the Soviet Union, but of course, the Nazis had a different idea. Mussolini’s fascism was mild compared to the Nazis, and he was right that the Hitler’s obsession on race is a waste of time and resources.