The Carnegie Foundation (in its Perspectives) acknowledges that:
…in universities…neither students nor faculty are accustomed to communicating across ideological divisions…In part because faculty may be unaware of the values and beliefs implicit in their approach to a subject, they may not raise assumptions for explicit examination…[or] imagine how one might make a persuasive case for an opposing view….
About this surprisingly damning admission of academic one-sidedness, read more.