Like others have said, Overwatch has a lot of diversity. More than most games I'd say. It's simply impossible to make everyone happy. People need to realize this. There are also other races and ethnicities that aren't represented in Overwatch, but you don't see them complaining. In fact, there are a lot of races and ethnicities not represented in games at all. It is unrealistic to expect Blizzard to add every single race and ethnicity in the game. Blizzard has done a good job with its diverse cast of heroes.