The US has had such for much of her history. So what? Creditor/Debtor international trade is something that forms a kind of mutual suicide pact if you are a dependent importer. The US is a self contained economic unit. I believe I mentioned this already?
Yes...the USA could be a self contained unit...but isn't! And no...you didn't!
The obvious thing for it to do is become one....it has become energy self sufficient...but with regard to manufactured goods very far from....to the detriment of the American blue collar worker.. .a large proportion of the electorate.
It will need to give up its imperial ambitions. Global hegemony is not possible...even for the USA.
Prior to Trump the USA was following the British Empire (actually it wasn't an Empire ...it was a trading system...read Addison...) down the road to hell...err...decline.
Obliged for your reference to Amy Hawkins...I will read with interest...
Incidentally, I am not trying to turn this into a Britwank. ..but I think the British ruling class, and it was/is a class, made a bloody mess of things.
Britain could /should have made a better fist of things.
It is sad to see the USA following the same path...