This is a good list but misses the fact that the state has a monopoly on the legitimate use of force (and therefore can both tax and compel the use of the dollar). The dollar therefore represents the economic potential of ~360m affluent (globally speaking) people who are economically and democratically integrated.
Imho the biggest threat to the status of the dollar is the sense that the democratic integrity of the US is no longer unquestioned: the republican frontrunner overtly doesn’t buy the whole ‘laws’ and ‘elections’ thing. That is undermining the conditions in the paragraph above.
True, but the generation that tends to vote far right is the boomer generation - it’s the generation that failed to pass on rising prosperity and gave us the climate crisis.