Either you have a culture worth defending or you don't. If Don Imus can lose his job over a throwaway snark, but Obama isn't taken out to the woodshed for 20 years of patronizing a racist lunatic, then you've surrendered in the culture war. If they have more confidence in their culture than you do, then yours is already gone.
No, it's not OK to scream "God damn America" and hurl venomous racial accusations from the pulpit. It just isn't. No excuses, no parsing, no understanding, no exceptions. If my priest said that in the church basement to the inner circle of the Knights of Columbus, I'd never go to that church again and I'd tell everyone I knew. Rev. Wright isn't mumbling this to his closest friends, he's selling videos of his crazed sermons on the Internet.
If the cultural rules apply to me, then they apply to you, too. Rev. Wright has the freedom to say these kinds of things, but his followers need to pay a very, very steep price for it.
Update: Over at Just One Minute, they're suggesting that Claude Rains should go close Rev. Wright's church. Hilarious! The rest of the Just One Minute post is a must read.