Over the same period, the number identifying themselves as nondenominational Christians, the evangelical-style tradition of the megachurches, has exploded, from fewer than 200,000 to more than 8 million.
Explosive growth, the ecclesiastical puffball mushroom :
Barna's polling
A red flag. For me anyway.
Why?
Sure, some of these nondenominational churches are liberal, but most are conservative Bible believing Christian Churches.