Willie, the debt can grow...until it is quit being bought. That is the issue. And That is what is starting to happen as China no longer sees buying U.S. treasuries as a safe investment. The feds will just print money and the dollar will collapse if this happens. They got us by the balls.
this is a common misconception
truth is China is a big player but doesnt have us by the balls as you say.
at all
in fact the entire "fed just prints money and the dollar collapse" scenario
is just an attempt to paint something very complex into a simple definition.