Your linked page doesn't actually appear to render any sort of compelling argument for this.

In fact - the entire argument seems to more accurately hinge the conditional left off the main saying, so the full description is:

"Bad money drives out good if they exchange for the same price."

But that requires a legal structure that enforces the disparity, and the summary of the whole thing basically boils down to:

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If given the choice of what money to accept, people will accept the money they believe to be of highest long-term value and not accept what they believe to be of low long-term value. If not given the choice and required to accept all money, good and bad, they will tend to keep the money of greater perceived value in their own possession and pass the bad money to others.

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But if anything - this is exactly an argument for the value of soft power to the US, because we can't enforce how other nations transact, except through soft power.

> The Dollar is antifragile.

Apparently the guy that invented the concept disagrees: https://x.com/nntaleb/status/1914633020671246352

Couldn't you make the same case for every other former reserve currency which has had something replace it?