

I’m pretty sure he thinks allies of the US are beta males that follow the US alpha male…
Vance said Trump was “America’s Hitler”. Before Vance realized that he could get power by supporting Trump.
You seem to be using “he thinks” in the sense “Vance genuinely believes”. I am not convinced Vance believes anything, his actions look like pure opportunism.

It is not a zero sum game. Letting the oil through, and thereby preventing the world market from a total tail spin, probably helps the US more than it helps Iran. So is on the surface surprising, but surprisingly rational on second look.