As to the "brutal US war machine"... Is there an "effective' war machine that isn't brutal? That's sort of the whole point.
In the Age of Information, can a war machine be both brutal and efficient? You need to whip up nationalistic frenzy to get your population to accept mass civilian - or even military - casualties, but doing so risks a demagogue seizing power and looting the country - and that's assuming they're just a cleptocrat, rather than a homicidal maniac.
US Army realizes this, even if you don't, which is why they're so interested in automated weapons systems. An unmanned vehicle can be sacrificed. You can take more risks with them in unclear situations - precisely the kind US forces keep on finding themselves nowadays - because if someone walking towards it turns out to be a suicide bomber rather than just stupid, it means pork for an arms factory rather than military funerals.
Furthermore if you really want to start judging the US, I'm going to insist that you compare us against a peer nation and show that we are worse then them in some respect.
So... that would be hegemonic powers.
How do you justify such demand? Nothing forces the US to be a hegemonic power. It can make do just fine - indeed, would probably be much better off - with ignoring the world outside its borders. Why would you get to disown the consequences of your choices?
And it's not Slashdot that will judge US, but history. Slashdot can provide a running commentary on how that judgement seems to be turning out, and tips on how to perhaps improve performance, but that's all. And history doesn't care about "rhetorical landmines"; only choices, consequences, and the pattern that emerges from these determine US's destiny. US is effectively judging itself, just like British Empire, Soviet Union, Roman Empire, etc. did.
"Judgement" is simply a function of reality that determines what things continue being a part of it. Human capacity for morality reflects it, and give possibility to take corrective action before it's too late. A nation that ignores morals is like a ship that ignores sea charts; it will run into a rock and sink, it's just a matter of how much damage it'll cause first or as it sinks.
You can compare us against the British Empire, the Soviets, the Holy Roman Empire, the ancient Roman empire, the old Chinese Empire, the Moguls, the Ottoman Empire etc. Big powers only please.
I wonder if the citizens of these old powers also perceived discussions about their flaws as battles that had to be won, rather than as opportunities to identify weak spots, repair them and thus save their nations. And I also wonder if John "But I drink less than Ted!" Smith ever looked back and regretted all the times he said that as he laid dying in the gutter.
Too many of the moral comparisons are apples and oranges in that they'll try to compare the US against Switzerland or something. That's silly.
Why so? If anything, the Swiss would have more of an excuse to go war-mongering, due to having a smaller home market and less resources.
Word to the wise, I've had this discussion many times and I don't lose it.
Neither did John. He did, however, lose his career, wife, liver and life. Even if he really did drink less than Ted.