I'm thinking another option is that the excess males might just leave for other countries. It seems like the most rational approach when an area doesn't provide the resources you need.
How many poor, rural, Chinese men have that option?
It will be the poorest Chinese who go without mates. They are the most violent and the most dangerous, and no country is capable or willing to support the immigration of literally millions of childless and aggressive poor men.
The Chinese leadership really only have two potentially effective options in my view. Try to manage it through pacification campaigns (estrogen in the water?) or send them abroad to die in wars.
Africa is a continent that includes quite a few different countries. Are any of those countries actively seeking permanent settlement by Chinese citizens?
Whether or not they are seeking or not, they are getting it.
20% of Angola's population is Chinese.
Also note that there are countries (although without such a Chinese influence) who will have major demographic shortages. A good example is Botswana which has an HIV/AIDS prevalence rate of 38%.
Do you have a citation of a source that says this? I just tried the usual kind of online sources for national population statistics for Angola, but I haven't found confirmation of this interesting statement.
Just note that the citations from the CIA world factbook is probably worthless. In the official demographics of South Africa for example, neither illegal immigration or temporary migration is noted.
This is fairly high though (as much as 3 million Zimbabweans and many people form other African countries such as Somalia).
I read this in a South African newspaper. But in fairness, without a citation this is worthless.
I see posts claiming a 100,000 works in the formal sector (i.e. working for formal companies). The number of Chinese working in the informal sector or illegally would be unknown.
I'm surprised by the lack of common sense on this topic.
(1) China doesn't just exports goods. It is a leading (if not the leading ) exporter of people http://en.wikipedia.org/wiki/Overseas_Chinese
(2) Extrapolating birth ratios stats into "unmarriagable men" doesn't work if you ignore the large difference in marriage rates due culture. Mainland Chinese has a relatively simple old school culture. People marry earlier than in the US and therefore "utilitize" their women at higher rates in the US and have lower divorce rates. I know an surprising number of decent guys in the US in their 40s of all sorts of ethnic backgrounds (white, latino, jewish, asian etc) that never married - sometimes never had a girlfriend. I know an equal number of women in US that have never married into their 40s and dont' look to marry soon. American culture simply does not PUSH as hard as Chinese culture to get married therefore the real gap is not as big as one might assume