The dollar is a weapon, and when the US can print as much as it likes, the odds are always stacked in favour of the US.
Trouble will really come when the US tries to get out of its ridiculous debt trap. What will they do, wave a wand and their debt goes away?
A large amount of the debt is owed to the US population. I doubt that the debt trap is that large of an existential problem, but having trade alliances break down is much more of a big deal.