"I am willing to die to do God's work"

and that makes me better than you.

Shelby Steele argues persuasively that this line of thinking is the essence of what animates radical Islamists.

...[H]ere, from the Muslim world, comes an unappeasable hatred that seems to exist for its own sake, a hatred with very little actual reference to those it claims to hate. Even the fighting of Islamic terrorist groups is oddly self-referential, fighting not for territory or treasure but for the fighting itself.
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All this follows the familiar pattern of a very old vice: anti-Semitism. The anti-Semite is always drawn to the hatred of Jews by his own unacknowledged inadequacy. As Sartre says in his great essay on the subject, the anti-Semite "is a man who is afraid. Not of Jews of course, but of himself." By hating Jews, he asserts that his own group represents the kind of human being that God truly wants. His group is God's archetype, the only authentic humanity, already complete and superior. No striving or self-reflection is necessary. If Jews are superior in some ways, it is only out of their alienated striving, their exile from God's grace. For the anti-Semite, hating and fighting Jews is both self-affirmation and a way of doing God's work.
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Hatred and murder are self-realization because they impart grandeur to Islamic extremists--the sense of being God's chosen warrior in God's great cause. Hatred delivers the extremist to a greatness that compensates for his ineffectuality in the world. Jews and infidels are irrelevant except that they offer occasion to hate and, thus, to experience grandiosity. This is why Hezbollah--Party of God--can take no territory and still claim to have won. The grandiosity is in the hating and fighting, not the victory.

And the arrant stupidity of the Western left which over the decades have infected polite discourse with ideas like moral relativism and multiculturalism makes it very difficult to us to understand the nature of our enemy. After all, it's the WHITE MANS' FAULT for his history of being the OPPRESSOR.

White guilt in the West--especially in Europe and on the American left--confuses all this by seeing Islamic extremism as a response to oppression. The West is so terrified of being charged with its old sins of racism, imperialism and colonialism that it makes oppression an automatic prism on the non-Western world, a politeness.
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And this works in today's world because the oppression script is so familiar and because American power cringes when labeled with sins of the white Western past. Yet whenever the left does this, it makes room for extremism by lending legitimacy to its claim of oppression.