Do not compare US debt to your mortgage!
Right now the total debt the US holds is equivalent to our GDP. You might be tempted to compare that to your mortgage, let's say you make $100k a year and the amount you owe on your house is 100k. You would think your finances are good. So therefore not too worried about US debt. This is a complete misunderstanding.
Let's say I buy a $400k house and put up $80k as downpayment and borrow $320k. My total debt is $320k, but my total assets are $400k so my net worth is positive, not negative.
No, the debt the US holds should be compared to credit card debt. Imagine you make $100k a year and your credit card debt is also $100k. That is the real situation.
Social Security and Medicare should be compared to your mortgage. These are supposed to be funded debt like a mortgage. You were supposed to have paid into this for forty years (which we did) before they need to pay out of it. However, they have looted Social Security.
There is only one way to avoid bankruptcy and that is if all the retired people were to die suddenly. However, there is a very big problem with this. Who is going to keep paying into Social Security and Medicare if you see they simply kill off all those who try to collect on that money.