Would Racebending.com rather have movie studios cast the best actor for the role or the actor who looks like or has the same ethnicity as the character?
Acting talent and ethnicity are not mutually exclusive–nor is acting ability some sort of innate racial trait. Any cultural or ethnic community in the United States will contain talented actors, so a movie studio should never argue that they had to choose between casting a talented white actor to play a character of color or an actor of color with terrible skills. There are equally talented actors of color, and they deserve the chance to represent their communities.