They want the rest of the US taxpayers to pay them and are funneling big bucks to congress to bail them out.
In the short term, you are right, the bondholders have clout.
In the long term, I think my camel’s nose under the tent theory has weight.
Since the Supremes denied PR the right to reorganize, like a bankrupt company or municipality, it is either up to Congress to say, “Oh, no, we can’t have that”, of for them to default, in which case another trip through the entire breadth and depth of the court system will occur.