Things happen when you abort all your females.
There will have to be guest workers just to care for all the childless men in old age -- assuming the regime doesn't manage to start a couple of wars -- and to assist married couples trying to care for their two children plus four parents.
They didn't abort all, or even most. The female imbalanced will be handled: men with good jobs will get wives, low-income men won't. Perhaps they will redistribute the Muslim Uighur women to them after they kill off the Muslim men.