GTA depicts people of all races being heavy criminals... isnt San Andreas the only one with a black lead? Wasnt um... the one before, whatever its called, lead by an Italian?

Anyway, I'm pretty sure the reason stems to Japan... I mean, look at their anime. Pretty much all their forms of media have heavily Asian characters or heavily white characters, with very little in between. Not out of racist recents I wouldnt think, but just because there simply arent a lot of other races in Japan.