Umm, you don't understand the purpose of sovereign debt. It has nothing to do with borrowing. Obviously, the United States is the wealthiest and most powerful empire in the history of mankind. We have no need to borrow anything from anyone, and could erase all the national debt tomorrow on mere whim with far fewer consequences than you might support.
Money is power. It has value as long as sovereignty collects it in taxes and adjudicates civil disputes with it. The more powerful the sovereignty, the more valuable the currency is.
In the case of the USD, the American Empire does something different. We do not simply create demand for our currency via taxes, as is typical. We compel the world to use the dollar for international trade. What you miss, because you are blinded by this misconstruing your personal money use with that of the US, is that the dollar is working better than ever. Last year was the banner year - over 75% of all foreign exchanges were settled in USD. And all of that money eventually has to flow through our financial system. And the so-called 1% takes a cut, which directly drives about 15% of the GDP and upwards of a 1/3 indirectly. The rest trickles down to the masses in terms of government handouts, or "services", like servants, hookers, drug dealers, etc.
Everything that is going on in the Ukraine is directly about maintaining this system. We cannot allow Russia to create a meaningful alternative market for energy denominated in currency other than USD. To do so would directly cut into the GDP at a time when we cannot afford to do so. Afterall, the deficit spending has been nominal for the past 5 years. Unemployment is at depression levels, and the middle class is being decimated as the quantity of money in circulation has not been increasing at the rate of the exponential growth in interest. Thus, they are drowning in debt. The domestic consumer economy has been destroy, as this same tribal group fears internal dissent, and has decided the country is best turned into a land of peasants with overlords.