The truth is we could solve the debt crisis and make the dollar the #1 currency in a few minutes, if we wanted to.

1. End the Fed. Nationalize it.
2. Stop allowing banks to create money. They can only loan money they actually have. Not a penny more. If they do, then they get seized by the government for fraud.
3. Have congress print enough money to maintain a stable currency. Shoot for 0% inflation. That money must be spent on the American people in projects or things that will benefit everyone -- not welfare checks or such.
4. Sell all the federal land in a public auction. Including the military bases and such. Because we don't need a standing army. Let the states maintain their own militias.
5. End all federal regulations and taxes. Just start over from 0. Disband all the federal agencies. The executive branch will be the president and like 4 other guys doing everything. No one else.
6. Because we need to print enough money to keep the money supply stable, we need to match the economic growth. Say the economy grows by $1 trillion in a year. That means we need $1 trilling in new currency to match it. Since the banks can't create any of that money, the congress must do so. So congress prints $1 trillion brand new and spends it on whatever it deems worthy. The extra money can go to paying down the debt (if any is left after we've nationalized the Federal Reserve). If congress runs out of things to spend it on, they can write checks to the states and have them spend it as they see fit.
7. With no taxes and no regulations, the economy in the US will grow rapidly, probably 20% or more. That means every year, we need to print 20% of the economy in new currency, which we need to spend to avoid deflation.

This solution is so simple and obvious it's been stumbled upon multiple times throughout history, and inevitably an economic explosion followed.