How does a nation get put into foreclosure?
Or else we become a third world country with a worthless currency and no ability to borrow capital from foreign sources.
That's not foreclosure.
Or else they send their armies to take whatever they find to be of value as repayment for the debts. They could call it a "national foreclosure and eviction."
Please ping me when that happens.
It seems like you still don't understand, so I'll spell it out. Comparing the amount of my mortgage, payable over decades, with a single year of income is stupid.
Comparing the nation's shortfall over the next 75 years with a single year of income is stupid.