I am not that sure if Blacks hear conservative messages at church. Certainly many Baptist and Pentecostal pastors preach the straight Jesse Jackson/Al Sharpton line. It probably goes all the way back to Martin Luther King Jr., who was not an orthodox chrstian but a liberal Protestant who accepted radical higher critical German "theology" and rejected the traditional supernatural chrstian dogmas. Just how far have those (again European) patterns of thinking seeped into the general population of Aframerica?
I certainly don't think there are many Biblical fundamentalists in the NAACP or the historically Black colleges.
You may be right. I’m religiously Jewish, so I don’t spend much time in black churches. I do know that the Reverend Wright-type “liberation theology” churches represent a fairly small minority of the total, and that there are quite a few pastors around the country who came out publicly against Obama on the gay marriage issues. But other than that, your guess is as good as mine as far what actually transpires every Sunday at the typical black church in America.