Post wwii (cold war) would you you base the ailled vs enemy planes based on NATO Vs Warsaw Pact.Below are two links to wikipedia that list each side, far too many for me to remember. But generally speaking there were just a few powers that were the leaders. For the Allies it was the United States, United Kingdom, Soviet Union, and China. For the Axis it was Germany, Japan, and Italy. I know it's not popular these days to maintain my view of the war but if I'm going to create a plane from World War II it's going to be one that fought on the Allies side.
A little or a lot patroitism is not terrible. I dont think judging a plane by what ever the country of origin's leaders had for ideas is fair to the design. But I can see your point of view. your differences in opinion may be more based on our age difference; you seeing it more from first person (cold war) and parents memories (wwii) and myself being more history books (i was born after the fall of the USSR)