When the German pilots went up against pilots who had recieved some real training and were flying non-obsolete hardware, it wasn't quite the same for them as shooting down poorly trained peasant boys flying in obsolete or semi-obsolete, poorly maintained aircraft..as they discovered when they began going hammer and tong against the British.
Like the German submariners who had all those "Happy Times" until the unprepared people who were dying by the bucketful became prepared. It is always easier to rack up scores against an opponent who is unprepared, untalented or poorly trained.
Yep!. This is the reason why the allied invasion and bombing of Germany succeded that smoothly, since most of the Wehrmacht was worn out against the Red Army. It was not in the west were Germany lost its war, it was in Stalingrad.
You can be thankful that most of the heavy fighting was done by the Russians. In Germany we still speak about the "Kamerad von der Westfront" (comrade from the western front) if we want to say that someone is slow and lazy, since a stopover there was considered as a holiday. That does not mean that we take Americans as 2nd class soldiers, but the Russians were those we were really afraid of. Americans fought courageously but civilized. The situation on the eastern front was much worse for Germany and Germans.
In fact only a few capable pilots were left in Germany when the real conflict with America began in 1944. Most of those who fought against the USAF were boys with 12 hours training in a Me 109. Not very effective and easy fodder to well trained US-pilots.