"If (hypothetically) Barry is the biological son of Mohammed Subud, then it must follow that his biological mother was at least part black in genetic lineage." __________________________________________________________ You're presuming that Obama HAS African ancestry. The entire point of pointing out the resemblance IS the resemblance, which goes to show that certain traits are not EXCLUSIVE to specific "races". There are Indonesians (tall ones, too, with kinky hair) that look more like Obama than his own "brothers" do. His skin is NOT black. Look at the diversity of people from Indonesia.
Both those guys are Indonesians. People are not pea plants and not all traits are determined by simple alleles.