Yeah, when I said villages died I meant villagers moved out. Young people go out and look for work in major cities is a factor. Male/Female ratio is also another factor. It is not uncommon to see villages to have 10 young man with 1 young female. At that point, regardless if you want to move out to look for work or not, you will end up moving out and that's why the differences between gender is also a cause. In richer villages closer to the shore, it's also not uncommon to buy/import female from other places. In this case, the deal is done for marriage instead of servitude.
This not a problem in major cities as more educated Chinese understand the value of female is not worse than male. So you do not see this situation in major cities.