Where's the proof she said that? Her mother is white and I've never read any such thing. If that's true, I'd be really surprised.
Couple of years ago there was a newsweek commentator, black writer possibly conservative but not sure, wrote an article about MLKs dream and how current blacks dont seem to want what others have struggled so hard to achieve. He listed Alicia Keyes and quoted her something along the lines i have written. ALso mentioned others Harry Belafonte and his Uncle Tom cracks with Condi and Powell. Article made me POed and Keyes stuck in my mind because i had no idea she was part black until i read that article.