China's demographics are irrecoverably screwed, there is quite literally no way back. Their population collapse began some years ago and the only thing it can do from here is gather speed. Literally every woman in the country between the ages of 16 and 45 could have three children, a totally laughable hypothetical, and it still wouldn't be enough to stop it.

That's official statistics too, there's some work out there by Chinese Academics shows that it may actually be worse.