Dude the USA runs the whole Euro Dollar system. The idea the USA really really "controls" it's own currency is a bit of a pipe-dream at this point. We might as well go for full global control.

Ah. I think currency controls might have been a new term for you. Or I should have said ”capital controls” to be aligned with wiki. [1]

Currency controls is what for example Argentine has been doing with set exchange rates and limits on conversion while mandating that all local businesses must be done in their currency.

It is not about controlling the currency, it is about creating hinders for capital movements in and out of countries.

[2]: https://en.wikipedia.org/wiki/Capital_control