I have no fear of the USA going broke. Sure prices will rise and the USD will become the next peso. So what? Simply demand higher remuneration for labor to make up for inflation.
What do you mean, 'so what'? I don't want all my services to cost more (heat, electricity, cell-phone, cable, etc) because of idiotic libertarian ideals.
The amount of dollars your services cost isn't what matters. What matters is how long you have to work to make that money.