Unalloyed good or not, it's way better than where China is at. And I'm not sure why "other countries are going to be even worse off soon" is an argument in favor of China being on the verge of surpassing as a superpower the one country on your list that is actually growing in population.
> Unalloyed good or not, it's way better than where China is at
I'm not convinced. I don't think that population decline is necessarily worse than changing the cultural and ethnic makeup of your country. If anything, I think that a much stronger case can be made for the other perspective.
Anyway, fact is, things aren't that bad in China. We can see what China's demographic future looks like, because nations like Germany and Japan are forerunners in that regard.
