Would you be comfortable with the US mission in Afghanistan is the Marines had been sent in by the thousands and done the job themselves, at considerably more casualties all around? I doubt it. Why? Because 1) you would complain about the US's disregard of the lives of those we were killing, ie the Tabiban and a bunch of sicko Arab residents, and 2) you really don't think the US should be there at all.
Instead we should have sent Holiday greeting cards to the perps stamped with that Islamic stamp that is out, suggesting that it was time to give peace a chance, and make love not war.
Does that about sum it up?
To say I wouldn't be comfortable with the mission is an understatement. It is an illegally waged war according to the constitution.
However, were this not the case, then I would expect that our actions would be justified and the matter of civilian casualties would not be one of politics but of the just execution of the war.
The only concern now is wheher or not it "looks good" or not. That is the extent of our transparent concern.