Putting it simply

Mark Steyn explains the demographic crisis:

Japanese and European societies are trying to secure the future on upside-down family trees in which four grandparents have one grandchild. No matter how frantically you "adjust," that's unsustainable.

And nobody but he is talking about it.

It was only a few years ago that I heard for the first time that UN demographers were concerned not about overpopulation, but declining birthrates that could have enormous social consequences. That was in a local report on KBYU, but you didn't hear it on any PBS program I've seen. Westerners, it seems, aren't only hostile to illegal immigrants but to families large enough to keep our population steady without immigration.