The US withdrawal now is tantamount to handing over the Strait of Hormuz to Iran.
What will happen next:
The US will lose credibility in the eyes of its Middle Eastern allies, and its deterrent power will be halved.
Southeast University quietly takes over the Iranian oil route, officially and rapidly establishing RMB settlement for oil transactions.
Southeast University wins by leveraging the right of way through the strait and discounted Iranian oil.
Southeast University's success is a perfect storm of favorable circumstances.