It bothers me when people use opinion as fact when they are speaking in a position of authority, and there was a lot of this in this interview. There is a lot of hyperbole.
It's a myth that 'trigger warnings' are a liberal concern. It may be a generational concern, or it could be a concern for a micro group of liberals. Plenty of conservatives call for censorship, too. To me it seems like a side-effect of a coddled generation reaching adulthood. That is not to say every person in this generation is coddled, but it is a modern parenting trend and studies are already taking place that prove such self-centered attitudes erode our society and workplace. :/
There are a lot of liberals who embrace what other groups may label "offensive". Why? Because information and opinions that are "offensive" teach us about culture, history, and ourselves, and give us direction for our possible futures.
I've been part of some interesting discussions about trigger warnings at universities and in the arts. Almost everyone who has engaged in these discussions could be categorized as "liberal", but the dominant POV is that trigger warnings are ridiculous.
A common thread in these discussions is that people who have had negative experiences (such as abuse, rape, and as victims of bigotry) were able to work through issues and heal by facing these topics in subjects such as literature, art, film, and history. People who face the ugly side of humanity grow from it.
When you sign up for a class, hop onto a website, or see a film it is your responsibility to be informed about your decision. A class on Greek mythology is going to contain misogynist material and rape scenes. A class on the Holocaust is going to contain bigotry and graphic material. My friend was asked to give trigger warnings for his articles on a horror movie website. He laughed.
No! If you make the choice to read about horror, prepare to be horrified.
That said, our society does need to move toward great tolerance and equality.
Personally, I don't think trigger warning at universities are the way to achieve it.
If something happens in a class that you really cannot handle, exit the class quietly, without disrupting the learning process for others.
Here is another article about students asking for trigger warning on Greek mythology:
https://www.washingtonpost.com/news...laim-greek-mythology-needs-a-trigger-warning/
Here is Haidt's (popular) article in the Atlantic:
http://www.theatlantic.com/magazine/archive/2015/09/the-coddling-of-the-american-mind/399356/