Oh, god, yes. He'll be fine. The Republican Party is not some huge friggin' monolith; they disagree lots more than the Dems do, which is both a weakness and a strength.
You want a good example of an admired black Republican, by the way? Look up the economist Thomas Sowell. That man is a genius. And there are lots of black Republican pundits: Star Parker, Baldilocks, and Larry Elder, right off the top of my head. There are more black Republicans than you think, my friend. And none of them awarded respect because of affirmative action, but rather because they earned it.
Obama, on the other hand. . .