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.

this is what i think and what i seen is always opposite what the majority of people think and people say usa dollar is bad then i go against this this is like trend now to say usa dollar is bad but i think if many people think that then its better not to follow to them and use own head:)

you people say usa dollar is bad?  okay:) np i buy all your tether usd whatever