They have divided the world into two political camps, (how absurd). America = Imperialism = bad, all else, revolution = good. They have become totally thoughtless reactionaries and actually see the totalitarian Islamists as an ally. They oppose any American policy or action in a Pavlovian fashion that would embarrass even the most hardened student of aberrant psychology.
So, there are apologists among us. They have to be fought - fought intellectually and politically and without let-up. What is it that moves them to their disgraceful litany of excuses? This is doubtless a complex matter, but here are a few suggestions. One thing seems to be the treatment of those who practise terror as though they were part of some natural environment we have to take as given - not themselves free and responsible agents, but like a vicious dog or a hive of bees. If we do anything that provokes them, that must make us morally responsible, for they can be expected to react as they do. If this isn't a form of covert racism, then it's a kind of diminishing culturalism and is equally insulting to the people transformed by it into amoral beings incapable of choice or judgement.