Somebody: Sure it does. White Americans are already predisposed to be against the Democrats as the party of minorities, and this is easily exacerbated by a minority president presiding during a depression. There's no need to find outlandish alternative explanations here.
Whites don't vote for Democrats. The last Democratic president to receive a majority of white votes was Lyndon Johnson. Carter, Clinton, and Obama have gotten decreasing shares of the white vote. Obama got only 43% of white voters! This, after the Iraq war disaster and the economic collapse. There's no mystery here; whites in this country have become very conservative since the civil rights revolution.