Slavery, settler colonialism modulo a bit of indigenous genocide, toppling democracies and supporting dictators all over the place, exploiting the natural world until it cried "mommy" and then keeping at it until we now have a gigantic environmental and climate crisis, and let's not forget investing more than anyone else on the world's most powerful military which was then used to invade agrarian societies armed with their grandparents' hand-me-down pea-shooters, and of course dropping two atom bombs and killing a couple hundred civilians in one of the worst atrocities of the worst war in history just to show who's boss.
etc etc etc.
Edit: as a matter of fact, the US did get something very right that everyone else keeps getting wrong: it invested in human capital by keeping its borders relatively open during at least some periods of time, so that people could keep coming in that eventually became the most dynamic sections of society. Very few others have done that, and almost nobody got it as right as the US. And yet, it is the "conservatives" today in the US that try their damnedest to kick the door shut against the windfall of human capital that keeps dropping in their lap, even as they keep outsourcing the US' most productive industries to one of its biggest competitors, China. That's not conservative, it's reactionary and completely idiotic to boot.