You can't police a multipolar world - you can when you're the sole superpower in a unipolar word where "policing" can be a euphemism.
I think there is now a general or at least generational attitude shift about world policeman type stuff vs smash, grab and bully in America.
https://en.wikipedia.org/wiki/Archer_Blood#The_Blood_Telegra...
The "policeman" narrative has always been propaganda.
The key point is how they see themselves. The average American sees the US as "the good guys". This is not a self-image lightly over-turned. Regardless of how the rest of the world views them.
Or just reflects American views of what cops are for; thumping minorities.
Anyway the part that makes the us unique is pretending to be ethical, which makes a farce of the entire concept of ethics. Admitting the entire concept of america is based on justification via violence would be a massive step forward
Great Britain at the height of her power was insistent that they were "Civilizing" people they oppressed, and Rome did much the same.