I don't think I even insinuated such a thing. Just stating facts. It is a FACT that those people would be better off today if we were there than they are now.
You insinuated that when you use ISIS as an example when asking, "Who cares what they feel?".
It is not a fact that they would be better off. Not only must you define what being better off means, not only is that a subjective metric, but you are talking about a series of events that did not happen and assuming that would happen is a fact.
And, of course, whether a people would be better off is not exactly a great reason to decide whether to invade or occupy a country.