http://newhumanist.i2p/articles/1772/power-to-the-pulpit
Harvard Academic Richard Parker claims this decline is largely because these organisations have completed the ultimately political job they set out to do: “The cycle of politics associated with the movement of white Democrats, from the South and Texas, into the Republican party is largely complete.” As a consequence, he argues, “the functional power of the para-religious organisations such as Focus on the Family, Christian Coalition or the Moral Majority is spent.”