http://home.comcast.net/~neoeugenics/eug.htmBasically, the 1 child policy has allowed a huge increase in the ratio of men to women in China, because male children are preferred. This will lead to intense competition among men, which will accelerate evolution in the Chinese nation. Looking at how quickly many types of plants and dogs were artificially selected for, I think we're going to see a change in the Chinese psyche very quickly, biologically speaking. The men who will win the upcoming competition will probably be smarter, stronger, and more vicious than the losers.
If the sexes are equal in number, competition isn't as intense, and females compete with dubious traits, like T&A. Face it; most guys, even smart ones, don't care much about smart women are.
On the other hand, women prefer intelligent men high on the social ladder, skills that are more important today than muscles were to cavemen.
Or, if we're lucky, they'll try and flood Asia in a massive war, looking for women.
At least war has a dysgenic effect in the long run (even Darwin saw this, and he was at the very beginning of modern biology). China is powerful enough as it is! Should we force liberalism and egalitarianism on them, or should we also embrace progressive biology and claim our genetic destiny?
PS- Legal immigrants are usually more skilled, intelligent, and driven than natives. They know how to adapt well to new cultures, eventually assimilating within a few generations. Shutting down immigration completely would NOT help us in the genetics arms race; we just need better control of it.