Liberal Peter Beinart admits Republicans hate Obama because he's a Democrat, not because he's black, but still can't accept it that the Democrat Party left the southerners, not southerners the Democrat Party, here:
I’m not claiming racism is irrelevant to Republican opposition to Obama. Race is a constant presence in American politics, and it’s impossible to understand either political party without it. But the right’s strategy of militantly opposing, and sometimes delegitimizing, Democratic presidents stretches back two decades now. It has its roots in the end of the Cold War, which stripped Americans of a common enemy; in the fragmentation of media that once spanned ideological divides and now exacerbates them; and in the near-extinction of the southern conservative Democrats and northern liberal Republicans who once helped broker political compromise.
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And you'd think he'd see the victory in this instead of the defeat, because Democrats joining the Republican Party have done far more to liberalize it, and the nation as a whole, than Republicans have done to "conservatize" the new arrivals. The constant leftward drift of politics since the Reagan era proves that, especially in the realm of social policy.