There's individual delusion, then there's what can only be described as continental bully.

https://consortiumnews.com/2023/03/27/caitlin-johnstone-us-is-the-leader-because-it-says-so/

 

I mean seriously, what other terms can one use ?

The U.S. has been in charge long enough to make it clear that the world order it dominates can only be maintained by nonstop violence and aggression, with more and more of that violence and aggression being directed toward major nuclear-armed powers. The facts are in and the case is closed: U.S. unipolar hegemony is unsustainable.