eh, more the actual interactive and engaged members of the various parties - the literati, the policy and political managers, and then insomniacally engaged (that's us) .
in general, however, americans (at least profess) to care less about race:
Gallup: Race not important to voters
as you can see, about 6% of whites and 2% of blacks were less likely to vote for Obama due to his race, but 5% of whites and 19% of blacks were more likely to vote for him over the issue. as measured by the poll, blacks were more than three times likely to exhibit a racist preference for Obama than whites were against him. So the claim that 'racism' as a political facet is solidly in the Republican camp and solidly anti-black is, in fact, rather the antithesis of the actual extent to which race plays a role in electoral politics.
so i stand by my claim - overall the left cares more about race than the right does.