It's also currently the world's pre-eminent power in a history dominated by strong militaries and during its tenure as such the world has unequivocally been more stable and peaceful than it's ever been statistically.
The access to free trade over more porous borders has lifted billions of people out of poverty. Europe hasn't been this peaceful ever as far as I can tell. Every major democracy in the world exists under America's umbrella.
Certainly it's not all roses, Iraq was probably just a decade of war crimes, but we can see what happens as soon as we leave places like Afghanistan (wasn't perfect, but was certainly a lot better a year ago than today), Syria (Kurds abandoned have to re-align with Russia, Turkish troops move in), Philippines (never even left after Duterte quickly reconsidered given China's encroachments in the S China Sea).
Pulling the US military into a more isolationist or more equal to others stance would almost certainly result in more regional conflicts around the world as the stakes go from "hey we definitely won't win this thing" to "hey, we've got a fighting shot here".
It's unclear if US actions have created a more stable world, but they have certainly created one more aligned with the US ideologically, often at the cost of lives, local economies, and continued instability.
Edit: Also, RE Afghanistan. Forget a year ago, the argument could be made that it would have been better off if the US had never invaded in the first place.
But from a world composed of far more people that those in Chile, Indonesia, Iran, Iraq, and South America. I think we've done a decent job overall from a historical perspective of promoting a fairly stable world during Pax Americana. With quite a few missteps along the way.
My point isn't that it's perfect, my point is that... all things considered, for a really large amount of the world's population, things aren't _that bad_ given historical context.
Sure, the child laboring to make phones in China isn't going to wax poetic about the wonders of Pax Americana. But my point is more... child labor was only more frequent in histories past.
Sure the murdered wedding goers in Afghanistan won't be happy about the state of affairs but civilians dying erroneously during combat operations has been a near constant in world history and at this point you're less likely to die in that manner than ever before.
You could argue that it's a result of larger populations but I'm not certain about that given Kazakhstan; Syria; China in Xianjiang, Hong Kong, the S China Sea, and Taiwan; Russia in Georgia, Crimea, and the rest of Ukraine; Myanmar; basically the entire Middle East.
It's easy to talk about how bad the USAF is, they've done a lot of bad shit over the years, my impression is it's still better than the alternative.
The US is certainly no saint, but I think someone(s)? have said that considering the alternatives *, you could do a lot worse.
* Realistic alternatives that is. I too would love to see us achieve world peace and ditch all weapons. But that's probably never going to happen as long as humans are not extinct.
Also want to echo sentiments about roaming profiles and how annoying they can be.
The problem is, alliances fray (Turkey, Belarus, Britain, the United States... we've all had our issues with current alliances and treaties in recent history alone). And that gets problematic and very hairy.
The other issue is, a single state dominance is prone to being coopted by less than benign actors and we've certainly seen that in the US I believe, especially given our invasion of Iraq.
So there's no cure alls on these things unfortunately. As a general practice I believe brining more members under our umbrella and strengthening the organizations like NATO and the UN which can act as a cooperative unit and not as a unilateral actor is a positive.