I think it's plausible China and US invert in that calculus over the next 30 years. The median US person (anecdotally) feels to me like they are getting worse and worse stakes. $45k a year is not a lot these days. Chinese are investing heavily in infrastructure in a way that's appearing to build a healthy amount of economic potential. Whereas the US is... struggling. Global happiness index scores for China and Vietnam have risen dramatically, while the US is sliding down.

But I could be wrong. Maybe there will be a reversion.