Why don't some black men date black women?
In the beginning of America, white slave masters could rape black women, and it was acceptable and encouraged. Black men could do nothing about it at that time. Some say that subconsciously black men that only date white women do so, as a response to what happened during slavery. Either way, there are still very prominent race issues in this country, and I think that these type of men have these dating preferences because of their own insecurities and feels of inferiority.
I suggest you open up your dating preferences and watch how other people's dating issues will bother you less.
I hope I've helped.