This is an excellent op-ed piece over at the New York
Times by Ross Douthat. A sample:
Both religious and secular liberals have been loath to recognize this crisis. Leaders of liberal churches have alternated between a Monty Python-esque “it’s just a flesh wound!” bravado and a weird self-righteousness about their looming extinction. (In a 2005 interview, the Episcopal Church’s presiding bishop explained that her communion’s members valued “the stewardship of the earth” too highly to reproduce themselves.)
It's not so much triumphalist as it is sad.