My current view:

The job of the hegemon is to maintain the status quo, proper order. Hegemony, the maritime order, global currency (US dollar), and forever war are inseparable. The cliché "if you want peace, prepare for war." Some low-level, mostly contained, amount of violence is the price for a larger "peace".

Post WWII, the USA did not engage in total war or seek unconditional surrender. Because breaking the equilibrium wrecks hegemony. As demonstrated by GWB's ill-advised conquest of Iraq, which (IMHO) was the deflection point for Pax Americana.

The notion of just war and world cop is mythmaking, rationalization. So the citizens will keep subsidizing the hegemony. (h/t Niall Ferguson) Any notions of justice, human rights, and whatnot were savvy marketing, born of (PR) competition with other hegemons.

As bad as Pax American hegemony has been for all participants, I'm certain we'll look back with nostalgia. In that "What has Rome ever done for us?!" sort of way. The ~70 years of (relative) peace was kind of incredible.

The emerging multi-polar world (and poly-crisis) is more chaotic, violent, and terrible. And will prove ever more so over time.