> nobody wakes up tomorrow and says they no longer want USD

Depends what happens tomorrow

It seems that people forecasting the collapse of the dollar are mostly doing it from a social perspective i.e. "America is collapsing under the weight of private healthcare, anti-immigration, tariffs, and the erosion of our allies; the dollar is done for"

But the reality is that financial markets don't really have a soul, and just care about economics. By all accounts, the American economy is doing excellent right now and dollars are still in heavy demand.

Deutche Bank I imagine is doing this because a significant fraction of their customers literally want to park their money in yuan?

If it was some rounding error they wouldn’t have bothered spending money to set it up and get all the clearances.

I'm less familiar with Dutch history - but that happened to the British Empire because its situation went from being the world's obvious #1, to barely avoiding national bankruptcy, due to the staggering costs of WWI and WWII.

The bailout, July '46 - https://en.wikipedia.org/wiki/Anglo-American_loan

Loss of India (the empire's real money tree), August '47 - https://en.wikipedia.org/wiki/Partition_of_India

FWIW, "dismantled" generally implies a personal outside actor, with the intention and power to take things apart. Vs. the British Empire crumbled mostly because Britain's & Europe's relative power / prestige / image, post-WWII, were just smouldering ashes of what they'd been before WWI. That had obvious feedback loops with ambitious "native" leaders, nationalistic memes, and the just-won "moral crusade" to liberate Europe from evil Fascist occupation.

EDIT: The post-WWII revelations & condemnations of Nazi atrocities, plus how well the "yellow" Japanese had done against European/"white" powers, were pretty much fatal to (then prevalent) meme of white people enjoying "natural" moral and military superiority over non-whites. Which meme was an important foundation stone of most of the Empires which crumbled in the decades after WWII.