The stability of the currency is mainly decided by countries outside the reach of the US's internal propaganda, because of the enormous debts and reserve currency status. I agree that a population which wouldn't go for Qanon would also make them quit invading countries in the middle east and south america, but depending on how this crazy business plays out, leaving Iran alone may be a small price for them to pay.

I hate to invoke Godwin's law, but business people loved Hitler all around the world right up until his propaganda machine shut out their influence and he started invading the other half of their markets and supply chains. If the people running our country have learned anything from history they will quit encouraging irrationality and gullibility some time before the curtains close, so to speak.