We can't pay our debts or our obligations with our money. That makes it basically worthless. Also, you may remember hearing about FDR making it illegal for private citizens to own gold. Our currency is a fiat currency. Which means that its value is buoyed by wishful thinking and fairy dust.
If the USA manages to pay off it's national debt of around US$ 30 trillion, (around 1.3 times your nominal GDP of 2022) or 130%, with worthless money - then that's the best deal of the century or even millennium.
Japan national dept ratio to GDP is 260% Yen
Greece national dept ratio to GDP is 200% Euro
Singapore national dept ratio to GDP is 160% SGD$
Italy national dept ratio to GDP is 150% Euro
USA national dept ratio to GDP is 130% - the US has not had a budget surplus since 2001.
France national dept ratio to GDP is 110% Euro
Canada national dept ratio to GDP is 110% C$
Now feel free to go to these countries and tell them that their currency is worthless - whilst explaining to them the factual rates of the international currency exchange which are internationally based on the US$.
You want to point out inflation? then bring up figures documenting the respective inflation rates of those above mentioned countries e.g. in 2022. And don't follow the footsteps of
Dagosa - who only posts unproven nonsense.