Yes they do. You know, its actually even worse than indicated because the one child policy causes a skewed sex ratio. There is a surplus of males...males with no relatives and with a stunted ability to socialize...and nothing in their lives to compete with the state’s agenda set for them.
The ruling elite of china have created for themselves a vast nation of worker drones. But at the expense of a future, if the one child policy persists. I don’t think the fact that many of them are pampered spoiled brats with no skills will hurt their economy though. At 3 billion people, even if 2/3rds of every generation is disfunctional, they still have more than enough worker drones to keep the system flourishing. For now.
1,338,299,500 Chinese, not 3 billion.
China also has no problem killing trouble-makers. These spoiled only children come from upper class families or educated middle classes - farmers get 2 kids and the desperate poor often have illegal children and pay the fines. Only those who have been in the cities for two generations or were functionaries have this 4-2-1 family model.