When I stated this below...

"I would say with the current generation this is pretty much true. Anyone born during the 70's or earlier... not as much. From what I've noticed, reguardless of the parental situation because of the social conditions, biracial folks identified as African/Black prior to the 80's. That is not to say that loyalty to the African community was guaranteed. It isn't guaranteed with clear cut phenotypical members... but it was more likely."

I would fiurther have to limit this to the U.S. and probably the 20th century, for biracial people(as a group) historically have sided with that of the European oppressor(usually their father) internationally, or at the very least have 'faked' solidarity with the African masses only to become the next oppressor or 'take their daddy's place". Africa and the Arab invasion/slave trade and Haiti's ruling class come to mind as quick examples of this group behavior.