Same crap that was said during Viet Nam, that our guys were dying for nothing. Anybody remember what happened to the people of Viet Nam and Cambodia after we fled?
I have made it quite clear where I work that if I see or hear anything that states or implies that America is at fault for the war that I will throw them down the stairs. Been over a year now and quite peaceful since we don't talk about politics at work any more.
I suspect your co-workers would rather be thrown down the stairs than listen to conservative logic and reason. I say, give them the latter, and their heads will explode. All a stair-toss would give them is some broken ribs.