I’m not taking offense, but I think your understanding of geopolitics is a little… I don’t know, simplistic? I’m not trying to say that to be rude, but look… as long as we have the power we have and can browbeat other nations, we cannot and will not be coerced in to making good on our foreign debt.
That’s it, that’s the whole reason. The entire global trade system depends on us flattening any bad actors with the threat of force. Other players would like to edge us out, but they can’t yet.