I thought like you once.
I agree this war, and many, are unjust.
Somewhere around 9/11 and Iraq I had to learn that the military is a necessity, and they can also be abused. I suppose my grand dad learned that when he was drafted for the big one, and we talked about it - in our way, after 9/11 when it all seemed to go sideways.
It's a shame we send our volunteers on missions like this. It's a shame we have to draft people to protect ourselves. It's a shame we lay shame on our service members when they are misused and abused by our politicians.
The military is a tool. Soldiers are people.
I hope you can learn that too, some day.