In her new book, “The Diversity Delusion: How Race and Gender Pandering Corrupt the University and Undermine Our Culture,” Manhattan-based author Heather Mac Donald argues that “we are creating a nation of narrowed minds, primed for grievance, and that we are putting our competitive edge at risk.”

“America is in crisis, from the university to the workplace,” Mac Donald notes as well; she is the Thomas W. Smith Fellow at the Manhattan Institute.

“Toxic ideas first spread by higher education have undermined humanistic values, fueled intolerance, and widened divisions in our larger culture.”

This kind of toxicity appears to be playing out at in academia once again.

At the University at Buffalo in New York — the largest campus in the State University of New York system and a public institution funded by taxpayers — psychology professor and director of psychology honors program Wendy Quinton claims her research reveals that supporters of President Donald Trump or his “America First” policies (students such as those pictured above) are “more likely” to show prejudice toward international students, according to reporting from Campus Reform.

“This finding tells us that if you statistically account for stereotypes, those domestic students who were higher in Trump support still had significantly higher prejudice,” she continued.

“Liking Trump goes beyond stereotypes in predicting prejudice against international students,” said Quinton in a news release about the issue posted on the university’s website.

“Some of President Trump’s policies, such as promoting ‘America First,’ the travel ban, and his talk of building a wall are in line with unwelcoming attitudes toward immigrants — but this is the first evidence I’ve seen linking support for Trump with attitudes toward international students,” she added.

“My research interests are focused on theoretically driven investigations of social issues. In particular, I center on issues that are at the interface of a number of core psychological topics, including the psychology of the self, prejudice and discrimination, social identity and social groups, and stress and coping. Investigating the experiences of and attitudes toward international students is a core part of my work.” That’s according to Quinton’s bio on the university website.

Pushing “prejudice” appears to be a familiar theme.

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Quinton’s study surveyed 389 students — a relatively small sample size — from an introductory psychology course.

The students, who participated in the survey between February and March 2017, were all natural-born citizens of the United States. Seventy-two percent were Caucasian, while 28 percent were students of color, according to Campus Reform.

LifeZette obtained the full study. A portion of it reads: “International students provide many benefits to colleges and universities, but the campus climate they encounter is not always welcoming … Results suggest that colleges and universities may lower prejudice against internationals by boosting university identity and increasing high-quality interaction between international and domestic students.”

With liberal professors overwhelmingly outnumbering conservative ones in the five subject areas of history, journalism, law, psychology, and economics, it seems likely that conservative students are the ones hassled by liberal professors these days.

In Quinton’s field — psychology — liberal professors at the nation’s top 40 universities eclipse conservatives by a ratio of 17.4 to one, according to the Klein study.

LifeZette asked Quinton for comment on this discrepancy, but she did not respond by publication time.

Related: Colleges Reject Students for Their Tweets — and for Those They ‘Follow’

With such a lopsided ratio, the trend is for conservative students to self-censor to cope with their left-leaning professors, according to a new study published in a recent issue of The American Sociologist.

“Self-censoring is antithetical to an authentic educational experience for conservatives and liberals,” said Jeremiah Wills, Ph.D., a sociology professor at Queens University of Charlotte in North Carolina, and the study’s lead author, told LifeZette. “All students need opportunities to have their viewpoints heard and challenged. They also need to be exposed to alternative ideas from other students and their professors.”

In contrast, “The Diversity Delusion,” Mac Donald’s new book, “calls for a return to the classical liberal pursuits of open-minded inquiry and expression, by which everyone can discover a common humanity.”

See the video below on the lengths educators will go to denigrate the current president of the United States.

Elizabeth Economou is a former CNBC staff writer and adjunct professor. Follow her on Twitter.