It's time to loosen up, hunker down and
GET IT ON.
See this article from More Intelligent Life
Just why are the non-religious not producing? Is sex not as thrilling if it's not a sin? Most people cling to the religion they were raised in (so the article says & I think it's true) and people of religious belief tend to have more children therefore religions are growing.
This is a real conundrum. Pretty soon we, the nonpartisan, will be extinct. So, all you unaffiliated of childbearing age better start making some moves.