Yet while the lack of conservative minds on college campuses is increasingly indisputable, the question remains: Why?
The obvious answer, at least in the humanities and social sciences, is that academics shun conservative values and traditions, so their curricula and hiring practices discourage non-leftists from pursuing academic careers. What allows them to do that, while at the same time they deny it, is that the bias takes a subtle form. Although I've met several conservative intellectuals in the last year who would love an academic post but have given up after years of trying, outright blackballing is rare. The disparate outcome emerges through an indirect filtering process that runs from graduate school to tenure and beyond.