Here are some rather disturbing data from a study university professors in the United States. This study, conducted by the Institute for Jewish and Community Research of 1,269 college faculty members. Faculty were asked: "What are your overall feelings toward the following groups using a scale of 0-100, which goes from 100, very warm or favorable feeling, to 50, neutral, to 0, very cold or unfavorable?" Which religious group do college faculty feel most unfavorable toward? Evangelical Christians... by a lot. Here's a graph of the results:
1) Double-standard. It indicates a double-standard regarding tolerance and diversity and academia. Imagine the outcry if so many professors disfavored other religious groups, such as Jews or Muslims? What if the same was said about other groups: gays, blacks, Hispanics, the disabled. I'm not saying that Evangelicals face more prejudice than these other groups in society in general, but rather prejudice against evangelicals is widely accepted in academia. In fact, when asked about these findings, a union representative defended this unfavorable posture as cultural resistance, not prejudice. (BTW, "cultural resistance" is highly valued in academia, ironic given our central place in the formation of culture). I can't imagine any professors arguing for "cultural resistance" against any of the other groups listed above.
2) Prejudice vs. discrimination? Does this mean that the unfavorable attitudes toward evangelicals gets translated into unfavorable treatment of them in the classroom? Probably. Central to studies of social psychology is the link between attitudes and behavior. It's not a perfect correlation and its strength varies by personal, situational, and attitudinal factors, but it is usually there. In a sense, though, it doesn't matter how much professors act out their unfavorable believes toward evangelicals, for just having them constitutes prejudice. These attitudes based on race are called racism, based on ism, against Jews antisemitism... all bad things.
3) Students' response. There's an old quip that "it's not paranoia if people are really out to get you," and some of that is going on here. I have long noted the discomfort many evangelical students feel in expressing their worldview in the classroom. Want to commit an instant faux pas in the classroom? Say the word "Jesus" in any context other than swearing. The unfavorable attitudes toward evangelicals held by a majority of professors suggests that this stifling of expression is both inevitable perhaps well advised, given professors' power in the classroom.
(Thanks to Ben for bring this study to my attention).