This is a steaming, hyperbolic pile. The wane of your particular religious hegemony means exactly nothing to the "end of the world." It will neither summon meteors nor open black holes. Wedding cakes will have two ken dolls on them and you'll have a tantrum. A lot of red-faced Southern Baptist preachers will have aneurisms on stage. In a decade nobody will care. It will be like a Catholic president, like weed, like cussing on TV, like internet porn, like cohabitation, like no-fault divorce, like Carl Sagan, like evolution. Like every other time you guys get hopped up on BS and start running around screaming at the top of your lungs.
The world will keep spinning, mocking you with every rotation.