I've not read all of the thread, but what scares me is who is having children. It seems that the most intelligent people in society, the ones with good jobs etc. are having children at a later date, and they're having less children too. Whereas the poverty stricken African countries, and the underclass in western societies are spewing children.

Sounds a bit Nazi, but it's worrying. In the past survival of the fittest would have kicked in and only the best survived, but nowadays everyone survives and the best aren't reproducing enough.