The fact that the numbers of Protestants and members of other religious affiliations are in decline in the U.S. should surprise no one. Since the early 1980s, religion in this country has been politicized as a wedge issue.
The religious right wing of the GOP has used its political power to demonize those it disagrees with. Leaders such as Pat Robertson, Jerry Falwell, Ralph Reed and Tony Perkins have made plenty of money while espousing beliefs with questionable biblical merits that are in sync with the GOP platform.
As the article stated, young people today don't buy into the hate-filled rhetoric of these people, but are looking elsewhere for a message of tolerance, charity and love for their fellow person. The "religious leaders" just don't get it, and their dwindling supporters are proof.