>>716458507They aren't white coded, they are white, or at least the ones with white features. If they wanted to make them asian/japanese, they would make them have asian/japanese features. There are actually plenty of anime where the characters are all asian/japanese becaause they'll all have accurate hair and eye color.
It also isn't a cope at all because whites don't care about being represented in foreign media, that's something that insecure ethnic minorities care about. It's a simple observation based on how they look.
Of course, it's somewhat complicated by the fact that white appearing characters often aren't treated as foreigners in anime versions of Japan. However, a lot of anime occurs in fictional worlds so in those cases real world logic doesn't matter