gold, page-23571

of course it can go bankrupt.
what you mean is they will not stop creating numbers to use to pay off their debts.
but at some point there will be no buyers for their debt.
at that point they will not be able to service their debts and will go bankrupt in its most accurate definition.

bankrupt
ˈbaŋkrʌpt/
adjective
adjective: bankrupt

1. 1.​
   (of a person or organization) declared in law as unable to pay their debts.
   
   
   
   I await your explanation of why it can not with amusement.