I'd assume that if they are given free choice, Chinese women are going to prefer husbands who do well in life. That would imply that the 1/3 of men who end up perpetually single are most likely poor farmers from the countryside, i.e. people without the means to travel abroad to meet someone there.

I’m saying 1/3 of men being without women will lead to violence. Or an even more extreme police state than now. Or both.