Just because you disagree with a definition, doesn’t mean it’s wrong.
Every country is culturally diverse, but there’s still statistical common denominator. You have big differences in languages, accents, food, culture in the UK and yet 82% are white British. Same goes for Germany, Japan etc. Every country do their demographic analyses differently, but the point is that they all can have major differences within the same ethic group.
So we should either agree to use the same definition or agree that it has no meaning and not use that word at all.
Technically correct, but your comment makes it sound like the military is actively commissioning movies, which is not the case. When Hollywood wants to make historical or war movies, they have few options:
I wish there were more options for independent and critical movie makers.