Pray tell, on what basis is that "appearence" predicated if the polls you refer to are in dispute.
Furthermore, how was the data aggregated with respect to black protestants?
The polls all agree that Catholics have voted three times for the Republican, the polls argue whether there have been three additional times, there is no dispute about the rest.
I haven’t seen a breakdown on black voting by religion, only on the black vote as a whole.
Only 19% of blacks belong to normal Protestant churches (Evangelical or mainline), the great majority belong to race based, “black Protestant churches”, and the rest are Catholic, non affiliated, no religion etc.