Any moron that says the western world has an OVERPOPULATION problem with a 1.7 birthrate should be thoroughly slapped in the face for being so utterly silly.
Africa is overpopulated, China is overpopulated, India is overpopulated. Europe is NOT overpopulated. In fact, Europe, America, Australia etc are, or are going to be very soon, underpopulated.
And unless you start campaigning for Saudi Arabia to allow gay marriage (please do, that would be hilarious), this is probably the most idiotic arguement to date.