The "bad guys", the ones you might actually refer to as "them", are sitting somewhere comfortable, far out of reach of any of this. Their only interaction in this is that they pressed a button.
This selfishness if of course natural for any human, but that does not make it better.
It's the self justified "us" than do most damage, not some "others".
I'm not saying that war is not necessary, but pretending that you're fighting zombies thirsting for nothing but your blood is idiotic. The soldiers you're fighting joined their army to protect their people. The people itself most likely just want to passively continue with their life, not understanding what the war is about, knowing nothing but the date of the first bomb. The people that started the war is sitting somewhere cozy, out of reach.
Simply not true in the case of, say, an aggressor who initiates conflict by invading other countries.
Many a times there is definitely a right an wrong in war.
The side which is right has no choice but to respond with aggression. Fight, or else be laughably annihilated for the sake of a pacifist ideology.
Any evidence for that?
Because again and again, humans are well-documented to NOT dance on each other's graves. We consistently pull back from the brink of destroying the "other" and not only let them live, but help them rebuild.
And yet you demonstrate it yourself with, "I expect them to do it, but not us in the HN community. We're different here."
Also: Baseline human psychology is tribalistic and violent. We need education and culture to behave as modern - and sustenance amd safety.
If you put a gun to my head, I'm certainly not going to care if you're my local baker or a North Korean soldier, just to name a random nation. Hell, I'll probably have sympathies for the soldier, as they are just doing what they were told, like any other soldier would. Getting angry at them would be pointless, although I'd of course do my best to fight for survival, and if I came out the winner, I would be upset that the life I had to take was not the life that was to blame.
For the baker, it would be hard to tell if the hand was forced, or if the idea of slaughter was of their own making.
Pressing the button means killing of lot of "us" in the end too, because there's no such thing as one-way nuclear exchanges nowadays, with subs ready to fire from anywhere in the world.
Starting from the 60's, the concept of MAD and a truly global, total war made this distinction irrelevant. As soon as you push that button, you're not only condemning "them" to death.
As if the establishment haven't killed (and allowed the killing) of tons of "us" without flinching an eye...
From this: https://en.wikipedia.org/wiki/Kent_State_shootings
to much worse stuff. But suddenly when it becomes matter of open public scrutiny it's some kind of big conundrum...
They just make their general discontent known ("oh, those pesky anti-vietnam protesters" etc), allow for the cultivation of an "us and them" dynamic, and then their people ensure that for years the police is not just allowed to do bad things but even encouraged (with protecting policemen that stepped out of line, giving promotions to their leadership if not directly, then after some such scandal gets forgotten, etc).
From McCarthy and Hoover, to the treatment of the human rights activists, the 68 democratic convention and onwards to this, the Watergate and more, it's not about some "bad apple" or "stressful panicked" actor, but about systematic cultivation of such solutions.
For one thing, "those pesky anti-vietnam protesters" had burned down the ROTC building a couple of days before, there was quite a bit of violent rioting prior to the shooting and the National Guardsmen had already had to use their bayonets to manage it (when bayonets get fixed and bloodied you know things got very serious). Today's "campus protests" are utterly farcical by comparison.
In general, violent civil insurrection was common, and the authorities management was very mild by the international standards of the time, and there was plenty of pressure from the bottom up for much more strenuous measures. Note it's the only major incident of that type in that period, and is a trifle when compared to atrocities like Waco.
McCarthy? Please, if you don't know what the phrase "submit to party discipline" means, and that it resulted in every member of the Communist Party of the USA (CPUSA), back when it was popular and selective in admittance (through the '30s at minimum), was a self-declared traitor, well, read up on what the other side was saying, or things like the Venona decrypts which eventually revealed just how accurate McCarthy's raw information was.
And note how the authorities' flaccid response to GRU and NKVD spying through these traitors like Hiss paved the way for crude men like McCarthy. That's a lesson you'll see from the Weimar Republic to a lot of what's happening today, and there's plenty of history of this sort of thing in pre-modern times.
Hoover was a bad apple, I'll grant you, and the rest of the barrel remains rotten to this day; has the FBI Hostage "Rescue" Team ever actually rescued anyone? Latest is their shooting in the only fatality resulting from the Bundy Oregon mess, and then trying to cover that up.
There is never going to be a one-sided nuclear exchange when a substantial number of powerful, ideologically opposed countries have access to ICBMs.
In short, there are no realistic circumstances under which the US would launch a first strike with nuclear weapons. The political cost is too high, and the benefits could never outweigh the costs.
How most nuclear powers would actually react to large-scale non-nuclear aggression is of course a whole different discussion.
Hiroshima and Nagasaki were not the most destructive bombing runs in WWII.
The March 9th 1945 bombings of Tokyo were far more destructive.
This shows just how much 20th c. nationalism still holds sway in many minds when it is as ridiculous as sports fandom.
Part of the dilemma in this thought experiment is basically about weighing the worth of the lives of unknown numbers of "them", against one of "us".
The President must distinguish "them" or "us", otherwise he has no business leading the country in a war. He must treat the killing of one of "us" with a different judgment.
The other part of this is remote controlled killing versus visceral engagement. Suppose that pushing the button is the right thing to do for the country, but the President has a personal aversion against the bloody engagement form of killing. As President, he's supposed to push, but a personal, psychological reason is preventing him from doing it as a man.