The US has a higher nominal export value of any country except China. Both economies are not highly dependent on exports, but their economies are so huge that they still dwarf the next highest countries on the list.
This is possible only because of the general demand for dollars. If the demand for trade with the US was based only on our goods and services, then we couldn't import as much as we do. If demand for dollars dried up, then our spending would be constrained and our quality of life would drop. So I think, anyway.
However, how can you say there is little demand for USD for US produced goods or labor?
https://en.wikipedia.org/wiki/List_of_countries_by_exports
The US has a higher nominal export value of any country except China. Both economies are not highly dependent on exports, but their economies are so huge that they still dwarf the next highest countries on the list.