“Following decades of the one-child policy, China is now faced with a shocking gender imbalance – for every girl below the age of 18 in China, there are now three boys.”
Holy crap! What an imbalance! Especially for boys from poor areas because women are expected to marry above the stature they are born into.
China Needs Women
not unlike: https://en.wikipedia.org/wiki/Mars_Needs_Women
... or how to motivate a hundred million men to invade the Middle East....
This sex imbalance can have geopolitical consequences, too. I believe China will be more likely to use those excess men in war, to keep them busy and out of trouble, and to kill a bunch off. And since there hasn’t been a devastating war in a long time, there really isn’t any country with excess women from which China can import brides.
You don’t want large groups of unmarried, unemployed males milling around. Check out urban US, and pretty much any third world country.