For a good example of the mainstream liberal Jihad mentality, take a look as Scott McLemee’s effusion of bile on the occasion of Leon Kass’ recent Jefferson Lecture of the National Endowment of the Humanities.
The basic argument goes something like this. Kass served in the Bush administration. The Bush administration is morally equivalent to the Khmer Rouge—the Cambodian regime that killed a million Cambodians (one fifth of the population) in four short years. Therefore, Leon Kass is a immoral cretin whom we should denounce and shun. Gotta love the inclusive Left.