Hello there. This is my first post.
I'm from Europe. And I'm not entirely clear on how your economy still works.
Let's look at the facts!
You are de-industrializing. The bulk of your industrial jobs has moved away to other countries, where the workforce is much cheaper, thus producing with more profits. The effect can be clearly seen on the region now-called Rust Belt, which used to be the American industrial heartland.
(Do you know I have never ever seen a product in my life on which that was written: "Made in the U.S"?)
So your exports are declining, and your population working in services increased to a never-seen-before 80++%. I don't know, but I think generally the service sector is improductive, also wages in this sector are generally lower. So even your domestic demand has to be damaged.
Because of the sharp decline in exports, your trade balance ceased to be in a surplus, instead it had a huge deficit. The imports are basically financed by loans.
Also, your country has a ludicrously huge military spending. Which is also considered to be improductive. This spending is also financed by loans.
And you have been the largest debtor nation in the world for at least 25 years. You must be killed by the interest!
I think the U.S would collapse if nations decided to have euro as the international money instead of dollar, thus not financing your debts any further.