Vanessa Williams has two biracial parents. She is 50 percent white, 50 percent black. And I said unless someone knows they are biracial, a biracial can easily be mistaken for a light skinned black person, or Latino. Look at Corey Booker.
Biracials are treated as biracial when their ethnicity is known. If you don’t know exactly what someone is, you make an assumption, and treat them as such. I have a biracial friend who passes for white, and he has heard all kinds of racist things from white people his entire life who didn’t know he was half black.
Do you think white people ever told Barack Obama racist stuff they were afraid to say in front of a black person?