New York Mayor Bill de Blasio, who, like nearly everyone, is running for president, presides over the largest and most media-centric city in America.

His national name recognition is respectable, but his support is undetectable. Literally. He’s at 0 percent, lagging behind such Democratic titans as Tim Ryan, Andrew Yang and John Delaney.

It isn’t so much that people have never heard of de Blasio; it’s that those who are aware of him don’t like what they’ve heard. He has the highest unfavorables of any candidate.

De Blasio is the variety of progressive who radicalizes everything. His administration is spending $23 million on “implicit bias” training for city employees. If you’ve never had to submit to these indoctrinations, they feature elements like the “white privilege exercise.”

It guides the subject through statements such as “I can be pretty sure that when I ask to speak to the person in charge, I will be facing a person of my race” and “If a police officer pulls me over, I can be sure I haven’t been singled out because of my race.”

De Blasio’s pick for schools chancellor was Richard Carranza, who decries “white supremacy culture.” Carranza has inaugurated a training program to teach supervisors to “disrupt the power structure and dismantle institutional racism.” The workshops are run by Courageous Conversation, a division of the Pacific Educational Group.

Their fee? $775,000. Extirpating whiteness can be good business.

Some of the white employees who’ve been through the training complained that it assumed deep-seated bias among their group but not others. Carranza’s response to this was vaguely Maoist: “It’s good work. It’s hard work. And I would hope that anybody that feels that somehow that process is not beneficial to them, I would very respectfully say they are the ones that need to reflect even harder upon what they believe.”

Engage in self-criticism, comrades!

A presentation slide from the workshop listed the following items as examples of “white supremacy culture” — perfectionism, sense of urgency, defensiveness, quantity over quality, worship of the written word, paternalism, either/or thinking, power hoarding, fear of open conflict, individualism, progress is bigger/more, objectivity and right to comfort.

Perfectionism? Really? You don’t think Robert F. Smith, the chemical engineer and investment banker who just paid off the student loans of Morehouse College graduates, has a bit of perfectionism in him? What about Oprah Winfrey? Is she not someone with a “sense of urgency”? Does Colin Powell not believe in individualism?

Mona Charen is a senior fellow at the Ethics and Public Policy Center.