Not only are a lot of Republicans racists, they're afraid to say so to non-whites.
This article makes me think there are still a lot of Bell Curve believers out there who hide their racism. So, in polls showing how racist the GOP is (see the last post), the numbers are probably actually higher.
"When a nonwhite researcher was administering their study, research subjects were amenable to changing their minds about the president's religion and updating incorrect views. But when only white researchers were present, GOP survey subjects in particular were more likely to believe the Obama Muslim myth than before. The subjects were using "social desirabililty" to tailor their beliefs (or stated beliefs, anyway) to whoever was listening."
- The Science of Why We Don't Believe Science | Mother Jones (view on Google Sidewiki)