I've been meaning to ask... are you seeing a therapist, or is this forum your therapy session???
(joke)
My favourite quotes about coloured people and white people come from the Samual L Jackson interview about race when he says the best way of dealing with Racism is not to draw attention to race at all, so don't have black history month, just have history, don't call him a black man, call him Mr. Freeman and he won't call you a white guy, he'll just call you Mr <surname>.
Yes, there are differences between races that have medical affects such as resistance or proneness to diseases, but other than that it's just a colour.
For me, the most worrying different between races is the links to different religious beliefs, but that's not a topic to discuss here.