Are political control of all of Europe and East Asia (a term that refers to 4-5 countries...) things the US has now?
Note that Wikipedia's statistics have China comprising just over 90% of the population of East Asia. In what possible world would China not be in control?
By analogy to the Manchus, you'd need an invasion from Japan or, I guess, Korea, that was supported by the PLA.
Political control of Europe is not a thing the US has now, but a friendly climate, yes. The avoidance of leadership capture by Russian assets, more importantly, which keeps the climate more friendly.
Note that Wikipedia's statistics have China comprising just over 90% of the population of East Asia. In what possible world would China not be in control?
By analogy to the Manchus, you'd need an invasion from Japan or, I guess, Korea, that was supported by the PLA.