I guess we are talking about a question of degrees. The kind of pillaging your talking about, that was carried out by the Allies wasn't systematic, and happened when they first moved in. Civilians in Populated Allied rear areas weren't starving, the local economy was actually encouraged to keep working, and self government restarted. The British People were never occupied, except the Channel Islands, and never starved, but their diet was pretty lean. For the Germans everything, and everyone was for the taking, the whole time they were there, and all justice was summary. True Luftwaffe mechanics, (the Blackbirds) didn't engage in many war crimes, but the field service divisions did, and not just the elite Panzer Divisions. Luftwaffe infantry divisions engaged heavily in anti partisan operations in the East, hanging large numbers of women & children.
If we're talking about looting, and stealing no one was a bigger thief then Herman Goering. But then the whole leadership from Hitler on down, with few exception thought it was their right of conquest to steal artworks. Before the war in Germany anything of course owned by a Jew was for the taking, or at the least at a big markdown. During the war what would Jews need with property after they were deed?
So I would never accuse you of making apologies for these war crimes, but I think your underestimating just how widespread these activities went. Especially in the East it's hard to find many units of the Army, Luftwaffe, and certainly the SS who didn't commit war crimes. These crimes happened because the leadership encouraged it. I'm sure you know from many psychological studies how hard it is for an individual to keep to his moral principles when authority is pressuring them to do things they know are wrong. The power of group think can create a lynch mob mentality, where all reason, and morality go out the window. Germans are no less moral then other human beings, but in the Nazi Period humanity was tested, and found wanting.