I would say yes, in the sense that the government would cease to exist if it were to declare: "Compute your taxes in whatever unit of account you prefer." But

I would say yes, in the sense that the government would cease to exist if it were to declare: "Compute your taxes in whatever unit of account you prefer." But I think a broader statement is that the "long dick of the US government" is the collective expectation for the behavior of major world governments. On the other hand, it's worth noting that US currency is not absolutely stable.