The US has already lost. The dollar went from 90% to 46% dominance on the world market. The economic power of the dollar is backed by the price of oil and is used to leverage sanctions on other countries and why russia and china are forcing it out of their markets.
https://www.rbth.com/business/332673-russia-china-us-dollar-america
Sanctions and the US dollar
https://www.msn.com/en-us/news/world/russia-urges-china-to-ditch-us-dollar-in-bid-to-bust-sanctions/ar-BB1eQRS4