[griffinmahon]

"Callous" is probably an imprecise word choice for the sentiment you're trying to communicate. And anyway it's not necessarily immoral to go to war for this reason depending on how you perform the calculus, e.g., depending on how much government money went into training and considering most soldiers don't kill others, it might be morally permissible.

I also doubt that the commenter would wholly support going to war or that he would seriously disagree with any of the assertions in "your second paragraph". But life is hard, and people have to try to achieve their goals and form a coherent narrative out of things. You might do better to reconcile a critique of the military with the fact that people in the military are not all bad or in the wrong.