From the 2nd half of the 20th century until Trump there was the view that the US lead a large group of "western" democracies (in the sense that Japan is "western") in a loose coalition that was NOT zero sum. The US provided a lot of benefits to others, this collaboration produced an overall surplus[1], which the US got a large share of.

The new view seems to be based on a zero sum, transactional view of international affairs. In this mode every interaction must clearly benefit the US more than any other participant. We have to clearly "win" every time.

[1] and this is not even counting 2nd order "surplus" from things like no longer having to fight world wars.

The “western democracy” thing was always a stupid republican excuse to justify bankrupting the U.S. with foreign wars.