[shrimp_emoji]

I think the United States and a India are much better positioned with respect to demographics, with like a generational lead on Europe and Asia. The U.S. has lots more millennials, with much more balanced sex ratios, than Europe or Asia, at least in proportion. Feel free to fact check me though.

Eventually, a generation or two later, the same phenomenon would hit them as well. But it's difficult to reason about what the world will be like even after it gets Europe and Asia. The world economy and geopolitical community would collapse or something, which could influence demographics in yet further weird ways. :O