"Throughout human history, young men have been responsible for the vast preponderance of crime and violence—especially single men in countries where status and

"Throughout human history, young men have been responsible for the vast preponderance of crime and violence—especially single men in countries where status and social acceptance depend on being married and having children, as it does in China and India. A rising population of frustrated single men spells trouble." In The Moral Animal, Robert Wright discusses this in addressing the social benefits of egalitarian, pro-monogamy social values. As a kind of real world experiment illustrating the meliorating effect of marriage, consider this: http://www.theatlantic.com/magazine/archive/2001/12/all-you-need-is-love/2351/ http://www.theatlantic.com/magazine/archive/2001/12/all-you-... In the 1970s, the PLO reigned in the radical militant young men in Black September by marrying them off. Apart from the obvious horror of infanticide, this is what I find most unnerving about the widening gender skew in these countries.