Our current debt to GDP ratio is a little lower than it was at the end of the WW2, the ensuing*** growth*** in the economy reduced this ratio dramatically in the years that followed.
Debt is relative, the first car I bought on credit was a $3200.00 loan and it seemed HUGE at the time. It was when compared to what I was earning in 1984, by 1989 I would not even have blinked at a $3200.00 loan because it would have represented such a small percentage of what I was earning.
YabaDabaDooMaJab is an idiot who knows no more about economics than the average Liberal, our immense debt to GDP ratio did not condemn us after WW2 and there is NO reason to think it is an insurmountable problem now.
It may be true that Conservatives will never have a Party willing to give these issues a fair Platform, if they fail to form such a Party then of course we will destroy our currency. But that does not mean such a fate is our destiny, the solutions to avoid this fate are quite simple and can be implemented in such a way as to migrate us gradually enough to avoid a major culture shock.
We will remain a SuperPower for as long as we have the Liberty to choose our course, even if we are still choosing idiocy. For the United States to be replaced as a SuperPower would require a stronger Nation to rise, China is dependent on our markets and is carrying a lot of our debt so their fortunes are tied to ours.
Nobody else is even on the map as far as a potential SuperPower.