Let me make it more clear for you
Obama is selling snake oil. I seriously doubt even he knows what he means by "change." He's transparently in way over his head. It was painful watching him at the faith forum debate. He's great when he's looking at the teleprompter but weak off the cuff. Sure, he may turn out to be a good president but I'm skeptical. He may even give away this election.
If you truly believe in the biblical notion of having to atone for an inherited sin then why not start with a decendant of Sitting Bull, or Geronimo for president?!
It has nothing to do with anyone's geneology. Americans today have an opportunity to atone for the misdeeds of americans in the past. I think that's something that shouldn't be dismissed as out of hand or unnecessary. I don't think Obama's qualified but electing him would be a cultural-transforming experience for America. The potential for electing a native american, woman or anyone else would never be in doubt after a black president.