Last year, an organization that promotes dialogue invited two authors to hold a “respectful exchange” about racism. I was one of them. The other was Robin DiAngelo, author of White Fragility.

I accepted the invitation. DiAngelo declined. And that was before she went viral.

White Fragility has become a bible for diversity advocates in institutional America and elsewhere But DiAngelo owes answers to the executives who are now panic-buying her ideas.

Read the rest of my column on the website of Heterodox Academy, a national network of academics who believe that open-mindedness brings us closer to the truth than orthodoxy does.