You guys use terms like "Nazi" to describe what? Rudel for instance was never a member of NSDAP but he was as 'right-wing' as they come. Rudel was a member of the Allgemeine-SS, joining in 1936 but never joined the 'party'. Galland was never a 'party member' either.
The Wehrmacht had a tradition, and for the most upheld that tradition through out WW2, that officers were not to be active members of political parties. In fact in the old Reich's army it was forbidden to belong to any political organization. Of course that doesn't mean that they did support or favor one party or leader over another.
§ 26 of the Wehrgesetz:
Politik in der Wehrmacht.(1) Die Soldaten dürfen sich politisch nicht betätigen. Die Zugehörigkeit zur NSDAP oder zu einem der ihr angeschlossenen Verbände ruht für die Dauer des aktiven Wehrdienstes.
Basically states that members of the Wehrmacht, who were members of political party, could not actively work for said party, they were 'inactive'. After the July '44 plot against Hitler serving members of the Wehrmacht were prohibited from joining any political party.
There were of course exceptions. The Luftwaffe, for example, was most modern branch of the Wehrmacht and as such was much more closely
associated with the NSDAP. In fact Hitler is quoted as saying:
I have an imperial army, a catholic navy and a National Socialist air force
There are plenty of examples of Luftwaffe personnel belonging to
the party, Walter Nowotny for one. There were many submariners who were party members as well. However, membership in the NSDAP was generally rare among Luftwaffe airmen and was actually frowned upon by others.
Was Galland a 'Nazi'..? Who cares... I don't find him all that interesting anyway. His post war comments have always had a hint of blame directed at others rather then excepting responsibility for his own mistakes and failures. However, because he was a leading member of the Luftwaffe no more makes him a Nazi then any one serving in the US armed forces now would be considered 'republicans'. Much like now there were plenty folks serving their country who did so out of their own sense of duty rather then some obligation to the NSDAP or Hitler. Soldiers don't fight for some abstract ideal, they fight for each other and their families.
Like many of us they had faith and believed their government when they out lined their reasons for war. That trust was betrayed and abused by criminals.