Go down Moses, way down in Egypt land

So Debra Dickerson is on the Colbert Report saying that since Barack Obama (blessed be his name, and also the name of his mother) is not descended from West African slaves brought to the United States, then he's not really Black. He's not really African-American, he's an African African-American.
From my position of White Privelege, I say this sounds like complete bullshit. But I'm also tired and cranky.

Do you cry out in your sleep?

Augh! Belated IFAMAQD!
Thanks to HamGallon for the reminder!