Yeah I could never imagine a film doing the opposite.
Question: if notorious white male, M. Night Shayamalan, casts an Indian actor for an originally Japanese character, is that........ I'm trying to think of a parallel for "white washing" that don't sound pejorative, but I can't do it. But.... yeah.
MY LARGER POINT BEING THOUGH, WHO EFFING CARES?
A movie adaptation is not meant to be a line-for-line reproduction of the source material, or what was the goddamn point of a movie adaptation? You, yes, you, go be a director and cast whoever you want for whatever you want. If you make a good movie I'll pay you money. Deal?