And to answer the poll, I don't see how any reasonable person would conclude that our standing in the world would be anything but harmed no matter what we do, whether we stick it out, or withdraw. The way I see it, we are damned if we do, and damned if we don't, as far as our international prestige is concerned.
Correction - the harm has already occurred, and was caused by the wanton aggression.
Pulling out immediately can only improve our standing among Europeans and the like, while at the same time reducing the myriad reasons middle easterners have to hate us by one.
I'm aware that some will say that it is a great disadvantage to be perceived as 'weak' - for example, it could encourage the Chinese to believe we will not act in response to a re-taking of Taiwan. The blame for this must be laid at the feet of those who got us into the war, and in any case we must get out eventually as we cannot 'win', and the ill effects internationally are greater for staying.