"we"? The US abandoned the gold standard in the 1930s. The "we" that promised anything is long dead and has nothing to do with the "we"
(US citizens) now.
A citizen today is no more accountable for actions taken that long ago than for actions taken 4000 years ago.
Nixon was the one that put the nail in the coffin of the gold standard and defaulted on our debt. I don't see how it makes a difference how old our debt is if we're still paying the interest on it.
A citizen today is no more accountable for actions taken that long ago than for actions taken 4000 years ago.