I think you are under the mistaken impression that conservatives even care about race. You'll notice that the Republicans, including our current administration, have been much better about appointing blacks and other minorities to important posts. Just because the left doesn't like those people doesn't mean that they are not black. And I submit to you that it really isn't that important, liberals will spew hate at them because they are conservative, not because they are black.
Ah yes, one of the republican's favorite techniques. Sarah Palin is yet another example of someone who belongs to an oppressed group, who uses that as a cloak for her anti-woman beliefs. Being "of" a group does not make you "for" that group.
In fact, I was reading an article yesterday that seemed to say that more Democrats (the party that sees beyond color...ha ha) will vote against Obama because of his perceived race (he was once half-white, not he's a black...his call) than Republicans will. Who are the racists?
Care to quote? Sounds like nonsense to me, but I will reserve judgement since I haven't seen the piece you are referring to.