"War is bad, the military industrial complex is evil," sounds good, and it hits all the right emotional buttons (care for humanity, etc.), but it is not necessarily true when all of the costs and benefits are taken into account. A defensive military allows intellectual, cultural, economic, and artistic endeavors to flourish without fear of attack. Destruction of infrastructure can open the way for rebuilding into a far better environment, and massive war spending can push the boundaries of technology. Reshaping political landscapes can cause huge culture shifts through decades which may result in much more open, and better, societies.
Suffering is terrible; death is abhorrent; and the benefits are uncertain enough, they should not be used as arguments to start an otherwise preventable war. But I do not see how we can appropriately judge the complex results of "war in general" on the timeline of decades or centuries.
What I can certainly agree with is that contributing to the military is bad on the margins, since it's already getting more than its share of resources thanks to others of a more bloodthirsty bent.
A defensive military allows intellectual, cultural, economic, and artistic endeavors to flourish without fear of attack.
At this point I laughed with a kind of sad laugh. Everyone who thinks America will use military robots for self-defense, raise your hands! On the other hand, you've made a wonderful argument that a strong offensive US military stifles cultural/economic/artistic endeavours worldwide due to fear of attack, though I'm sure you didn't mean to.
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