Surely you don't have to
date anyone! What sort of age group are you in? Skin colour doesn't make a boy better or worse - but you'll find that out as you grow older. Wanting to date white boys is no different from saying you want to date red-headed guys, or ones who are a certain height or age - hopefully you'll look for more important qualities in men as you grow older.
Isn't there any way of joining clubs outside of your neighbourhood, or studying some course or hobby that would take you away from the area into one where you might meet different people?