"Don’t misunderstand me. The terrorist actions of Al-Qaeda we..." — N.T. Wright quote meaning

Don’t misunderstand me. The terrorist actions of Al-Qaeda were and are unmitigatedly evil. But the astonishing naivety which decreed that America as a whole was a pure, innocent victim, so that the world could be neatly divided up into evil people (particularly Arabs) and good people (particularly Americans and Israelis), and that the latter had a responsibility now to punish the former, is a large-scale example of what I’m talking about - just as it is immature and naive to suggest the mirror image of this view, namely that the western world is guilty in all respects and that all protestors and terrorists are therefore completely justified in what they do. In the same way, to suggest that all who possess guns should be locked up, or (the American mirror-image of this view) that everyone should carry guns so that good people can shoot bad ones before they can get up to their tricks, is simply a failure to think into the depths of what’s going on.