Wow. Nice post. Some of the apathy towards the body count I think has to do with that "Hero" fixation that a lot of patriotic people have. They are still under the impression that the USA is on Gods side, so can do no wrong. They are in love with the narrative that we "defended" our country, and the US service members who where killed or injured romantically gave their lives or health out of the love of freedom and the American Dream.
The on ground reality of course is far different. Many of us committed murder and atrocities in frustration, hatred and anger, while our buddy's were killed because the population had similar attitudes towards us. The USA was never in any danger from Iraq, and the people of Iraq didn't want us there. Never been to Afghanistan, but its probably the same story over there.