Roger Scruton argues for the superiority of Western Civilization on the basis of its possession of the faculties of irony and forgiveness, but warns that the arid landscape of multicultural liberalism can never fulfill the spirtual and emotional needs of humanity.

This culture of repudiation has transmitted itself, through the media and the schools, across the spiritual terrain of Western civilization, leaving behind it a sense of emptiness and defeat, a sense that nothing is left to believe in or endorse, save only the freedom to believe. And a belief in the freedom to believe is neither a belief nor a freedom. It encourages hesitation in the place of conviction and timidity in the place of choice. It is hardly surprising that so many Muslims in our cities today regard the civilization surrounding them as doomed, even if it is a civilization that has granted them something that they may be unable to find where their own religion triumphs, which is a free, tolerant, and secular rule of law. For they were brought up in a world of certainties; around them, they encounter only doubts.

If repudiation of its past and its identity is all that Western civilization can offer, it cannot survive.

Liberalism additionally fundamentally misunderstands our current Islamic adversaries, Scrutin argues, erroneously trying to fit their motivations into a simplistic Marxist schema of economic motivation and animosity.

The vague or utopian character of the cause is therefore an important part of terrorism’s appeal, for it means that the cause does not define or limit the action. It is waiting to be filled with meaning by the terrorist, who is searching to change not the world but himself. To kill someone who has neither offended you nor given just cause for punishment, you have to believe yourself wrapped in some kind of angelic cloak of justification. You then come to see the killing as showing that you are indeed an angel. Your existence receives its final ontological proof.

Terrorists pursue a moral exultation, a sense of being beyond the reach of ordinary human judgment, radiated by a self-assumed permission of the kind enjoyed by God. Terrorism of this kind, in other words, is a search for meaning—the very meaning that citizenship, conceived in abstract terms, cannot provide. Even in its most secularized form, terrorism involves a kind of religious hunger. …

Islamist terrorists are animated, at some level, by the same troubled search for meaning and the same need to stand above their victims in a posture of transcendental exculpation. Ideas of liberty, equality, or historical right have no influence on their thinking, and they are not interested in possessing the powers and privileges that their targets enjoy. The things of this world have no real value for them, and if they sometimes seem to aim at power, it is only because power would enable them to establish the kingdom of God—an aim that they, like the rest of us, know to be impossible and therefore endlessly renewable in the wake of failure. Their carelessness about others’ lives is matched by their carelessness about their own. Life has no particular value for them; death beckons constantly from the near horizon of their vision. And in death, they perceive the only meaning that matters: the final transcendence of this world and of the accountability to others that this world demands of us.

Hat tip to Karen L. Myers.