Well it's not like it's some inscrutable thing. It's usually propaganda, ignorance, or greed. I don't need to bomb an elementary school myself to figure out why that's a bad thing to do.

Call me self-righteous and annoying but I really question the usefulness to any leftist organization of soldiers who would still make excuses for their service to the Great Satan.

https://archive.ph/2x19K#selection-105.0-109.329

"This has been documented by the neo-conservative Heritage Foundation in their study on the recruitment demographics of the united $tates military, which found that only about 10-11% of the united $tates military recruits come from the poorest quintile (defined as making less than $33,000 annually), with a fourth of the military coming from areas whose median income is more than $65,000 annually.[1] They gathered this information using addresses of personnel at the time of recruitment, which has faced much criticism by those who argue for the existence of a poverty-draft. What problems do they see with this method? Well, according to the Boise Weekly the statistics are unreliable because “[m]any recruits are college dropouts who list their last address—their college dorm—when they sign up”, which they believe would provide an inflated statistical portrait of average income.[2] They assert that this is the case without actually presenting any evidence.

As for the validity of the claim that, by and large, the military is made up of college dropouts who use their college residence as their permanent address: that is already a questionable assertion. It also raises questions about the kind of people they assume are “forced into the military by poverty” who are still equipped with the financial support to move out on their own to attend university. Furthermore, their label of “uneducated” seems a hardly fitting descriptor for a military which does not accept people without a highschool diploma.[3] This is a deliberate deception; their assertions rarely contain vital evidence and rely on definitions of “education” that hardly fit the bill. Even more interestingly, this article assumes that those who do not finish college or do not attend must automatically be poor and forced into the military for that reason. This assumption is further jeopardized by the fact that most amerikans have not earned a college degree. It is true that the Heritage Foundation, being quasi-fascist troop-worshippers, have their own motives for promoting a class-collaborationist and prosperous image of the military, however we judge their study on its merits rather than the inconvenience of its results."