Promoting Viewpoint Diversity at the University

Jonathan Haidt is a social psychologist and Professor of Ethical Leadership at New York University's Stern School of Business.  He is another "YouTube intellectual" I've been following a bit lately.

He has been a prominent voice (and one from the political left, I might add) calling for reform at our universities that are increasingly homogeneous in terms of political perspective or ideology.  He is (rightly) concerned that efforts to stifle free expression of ideas and shield students from any and all viewpoints that might be upsetting leads inevitably to a loss of intellectual rigor, both among faculty and students.

If controversial (often simply another word for "conservative") speakers are banned or shouted down when they attempt to share their perspectives on campus, this means that students and faculty never "do business" with their ideas, never examine the claims, never evaluate the evidence. 
Far from protecting the students, this intellectual sheltering can only leave them less prepared to evaluate the many new or challenging ideas that they will encounter for the rest of their lives upon leaving the university.

He also shares about the work he and colleagues are doing at https://heterodoxacademy.org/ to bring about reform and also rank schools according to their openness to free inquiry and the free debate of ideas.