Obama, Halle Barry, Alicia Keys, Maria Carey are all children of black fathers and white mothers.?

their fathers abandoned them....not a dime of support....their mothers worked 2 and 3 jobs to pay for food, clothing, music and piano lessons, ivy league educations, taught them morals, pride, integrity....yet each one of them call themselves black...I can't imagine how that must hurt their mothers...they are, after all, half white....(please don't mention the "one drop rule...that does not apply to multimillionaire celebrities...they certainly don't care about the opinions of the general public)