OK, so we're just going to handwave away any positive impact the US has had in preserving the rules-based international order for the past 70 years and amplify every US failure, while not even taking into consideration the alternatives like Russia and China. Keep living in your bubble.
The USA's foreign policy is anything but rules-based. They're brutal and barbaric. You can agitate China and Russia as being scarier, that doesn't make the U.S. military a force of good.
If you're asking the whether they have their place being shoved at the center of Defcon you have to take in the whole picture