Liberal Faculty at Christian Colleges - The Root Source of Apostasy

The great bane and root source of apostasy for the Christian church is always traced back to the liberal college faculty in Christian colleges. From whence is the tension between the faculty and the more conservative boards of these Christian colleges? Red-state parents send their kids to blue colleges, and they always turn out blue. But why? Can the Christian college be fixed, or is the entire system programmed to a bad end? What about education majors? Psychology majors? Sociology majors? Where did these come from?