Oh my goodness, this is deeply untrue. China is facing a massive population implosion. A lot of their global strategy can be understood through that lens: they are racing to accumulate power, standing, and wealth before the implosion starts to kick in.

Everyone is seeing a population implosion: https://en.wikipedia.org/wiki/Demographics_of_the_world#/med... we are already past peak child.

Some are doing worse than others, and China is doing close to the worst.

I don't understand. You say China is doing better than the West, and then explain why the West is doing so much better than China.

The West isn't doing better.

The West is destroying third world countries to take their human resources. Blowing up the middle east created more uber eats drivers than defunding all the schools in Detroit ever did.

I think you haven't been following the news. US demographics is by far the healthiest of all halfway developed countries, with the exception of Israel. China has third low TFR in the world after South Korea and Taiwan, and is facing extinction within two generations whereas society and the economy will simply cease because all available labor will be consumed by caring hundreds of millions of extremely elderly people.

By 2100, US will look about the same as Western Europe looks today: ageing, but still OK. China will be no more.