The global decline in fertility rates has grown so severe that some demographers now talk about “peak humanity” – a looming maximum from which the world’s population will begin to rapidly decline. And though the doomsayers who preach about the dangers of overpopulation may think that’s a good thing, it is in fact an existential threat. Canada has not escaped the decline: birth rates have fallen steadily since 1959, during which time we built a massive welfare state without the manpo...