I think it's impractical to let a pilot's political affiliations or political thoughts extinguish one's enjoyment of reading about the flying. Stalin and his Soviet regime were just as bad as (or worse than, if you are going by body count) Hitler and the Nazis. WWII Japan and its treatment of the Chinese, SE asians, and POW's was right on up there. Yet I enjoy reading the stories of Soviet pilots (including pro-Party ones) and of Japanese pilots (including pro-Imperial Japan ones). Some folks take into account German pilots' politics, but do folks notice or care at all about Soviet or Japanese pilots' politics?
I also think it is interesting to read about Caesar, Alexander, Napoleon, Charlemagne, Ghengis Khan, Vikings, Vandals, Angles, Saxons, the Kings of England, etc., but I don't have to think that everything they did or strove for was moral.