Year by year USD will be devalued that some kind of currency will replaced it as world currency, china is pushing forward to replace it by their yuan.
And maybe some time that bitcoin price will not be based on USD, but just BTC.
i have traveled and lived many countries myself seen things seen life from my perspective the currencies might fall yes but saying that usa dollar will be devalued i can tell you that china yuan is less useless then USD the usa dollar still has big market.
usa dollar is king of the fiat curriencies and btc is king of crypto.
Before the dollar falling there might many other currencies what can fall down first i think so.
i think russian ruble and usa dollars are both very needed since russia got resources what everybody want and usa is just reservecurreny.
, I'll just say that since china is the 2nd richest by GDP after US, and look how they managed this pandemic regardless where the virus origins while other including USA are still struggling