What you don't know is at t"this point" Leaving means we are wrong, staying means we are wrong, fighting means we are wrong to them, they manipulate the population to think we are "the bad guys" in a simple way, so they almost have constant support(terrorists) to go against us, doesn't matter how many we save, they will turn things around toward us, thus this is a endless pointless fight.
So, what is your point?