There's no doubt there's that kind of undercurrent in the black community and its very significant Obama wouldn't repudiate it. He could take 88% of the black vote if he had so it not like throwing Wright under the bus would have harmed his standing with it... and it might very well have put the race issue completely behind him.
"Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached." - Manuel II Palelologus