From my experiences with the YPG in the Syrian Civil War --- You'd be surprised how many people that have seen combat absolutely loved it. There was one guy that would go in a state of ecstasy while being shot at, literally expressing happily "ha ha they try to shoot me" and this is a guy who had seen many of his comrades die. Once you accept you are dead it's actually far less mundane than normal life, while at the same time you have a fairly straightforward sense of meaning and purpose. Plus life is much simpler -- 99% of (that) war is just standing guard, smoking cigarette, drinking tea, moving sandbags, etc, much less complicated than say something like trying to juggle a dentistry practice while driving the 2 kids to school events and then going home to patch drywall on the house.

There's a reason why Hemingway wrote "There is no hunting like the hunting of man, and those who have hunted armed men long enough and liked it, never care for anything else thereafter." Going home just to have a toddler scream at you for the wrong color cup or walking into the grocery store and just effortless picking one of 1000 brands of cereal just seems so -- hollow -- afterwards.

This is a large component of the alt-right, isn't it.

> much less complicated than say something like trying to juggle a dentistry practice while driving the 2 kids to school events and then going home to patch drywall on the house

There is genuinely a group of people who'd rather fantasize about mass murder than do chores. Every now and again one of them actually picks up a gun. Then some school kids never have to go to events, or anywhere, ever again.

I have some sympathy for people who can't adapt to peace. When I was a kid one of my neighbours was https://en.wikipedia.org/wiki/Mike_Calvert ; I knew him as an old man who drank too much and never talked about the war. This is not an excuse to restart the war.

I think the point of the hurt locker was to show us how unhinged that existence is, at the end of the day.