I am not sure about this. But I think that a large part of that debt is converted in to bonds. And most of those bonds are owned by nations such as China and Japan.
china and japan are the majority stake holders of USA
i also edited my analogy slightly, its only aimed to show in laymans terms that banks have stolen more wealth by creating fake wealth (debt) which is equivelent to people in the wild west making/selling "fools gold".
just to show that gold/fiat markets are WORSE when it comes to gready scammers