This two-dimensional financial analysis focuses only on a single metric, and ignores the most important factor: ability to borrow / creditworthiness. Until the US government cannot borrow or has as much trouble borrowing as Russia does, it cannot be said to be in financial trouble.
The United States's ability to borrow will diminish, as the net debt mount beyond a certain limit. And the Russian troubles are just temporary.
The first part of this is certainly true in theory, however people have been promising it for a looooooong time and it hasn't proven out in the slightest so far. You can always claim time is on your side, however you have no evidence to support the claim right now. The second part of this is opinion I don't care enough to rebut.