Unless the US losses a major war either economical or physical they are hard to upend because of globalization. Everything is very dependent on the US dollar and switching it will take a lot of persuading. Like losing a world war type persuading.
The deficit and the debt seem to be Really Big Numbers, existing in a scope outside of economic reality.
One has the impression that this is not an economic perpetual motion machine.
Maybe covid-19 could sink the USD and usher in a new economic phase.
But seems unlikely, and there further seems zero political will to do anything more sane fiscally.