The US government either can print more money to pay off their debt or default which in either case produce more problems in the long run. I agree that with cryptocurrency, most citizens would be able to avoid poverty. But I think what people really need is a stable coin for those who doesn't want to invest in a high volatility coin like Bitcoin. Like for example, euro, yen, or even gold.
Do you know that the United states does not even know how to play their game very well because if I was in the position of government, in other to pay my debt easily, I would just act the way whales do operate, what I would do is to buy bitcoin when it was cheap, imagine that they had bought bitcoin when it was $4000, and then buy the worth of 1 billion dollars first, then they create a new that would make bitcoin go round the word and push the price of bitcoin to $20k.
That would be a profit of like x5 already which means that their investment would have turned to $5 billion dollars, so they have extra 4 billion dollars to pay part of the debt, while they keep repeating the same action until they are able to fully pay their debt to zero.