"It is unavoidable that one day in the far far future, the U.S. loses reserved currency status. " There are some opposing opinions on this being far far away. Recently the USD has lost a significant amount in global percentage mainly due to all the sanction the US imposes. The US treasury itself warned that these sanctions are bad for thr US. [1] [1] https://www.livemint.com/news/world/yellen-says-sanctions-ma...
Also by the time US loses its privileged position it will already be too late to reinvest elsewhere without losses. So many funds are already moving money to China and elsewhere. Having said that China etc have their own economic and demographic problems so nowhere seems safe at the moment.
Good luck to those investors. China has no established tradition of respecting property rights. It can change the rules of the game as it sees fit politically.
The only way to make it workable is to have some critical trading relationship that makes the cost of seizing property/money unpalatable.