There's an alternative, and 3 out of 5 BRICS countries + Turkey are really boasting, as well as most of Asia technically being one without officially boasting it: the civilization state model.
So each civilization being independently run and figure out their own shit, like how that has been the case throughout history until WWII, meaning that clearly this model just works.

Plus the BRICS countries have almost all agreed to trade with each other using their own currencies (and so to skip the USD altogether), because if America has shown they can just cancel an entire country that's also quite a beefy military and economic power too off the system, I'm not surprised at all that more and more countries are dumping the USD.

Right now it's mostly the poorer countries pulling out first, and it's a matter of time before the rest of the world follows suit.