Racism in presidential election?

It had occurred to me when I published the piece about Obama voters in Harlem being happier with McCain's policies that the election could be a racist victory - and now I believe that that may well have been the case.
White voters have happily voted for either candidate.
Non-whites have voted Obama en bloc.
Hmm.

LINK: http://www.dailymail.co.uk/news/worldnews/article-1083335/Breakdown-demographics-reveals-black-voters-swept-Obama-White-House.html