On "The Kelly File" tonight, Alan Dershowitz weighed in on the student demonstrations that are taking place on college campuses across the country.

Dershowitz, a professor at Harvard Law School, said that these protesters claim to be seeking diversity, but the last thing they want is a diversity of opinion.

"This has become a very serious problem, not only in American universities but in universities around the world as well," Dershowitz said. "And it is influencing and having a terrible impact on the education of students."

He said it's "the worst kind of hypocrisy" that these students want complete freedom over their personal lives, but they want the school and administrators to protect them from ideas with which they disagree.

He revealed that when he recently spoke at Johns Hopkins University, students painted a Hitler mustache on his posters.

"No concern about that. It's an absolute double standard. It is 'free speech for me but not for thee,' and universities should not tolerate this kind of hypocrisy," Dershowitz said.

"You have to call these things what they are: double standard, hypocrisy, bigotry, McCarthyism. And the fog of fascism is descending quickly over many American universities. We have to fight back against these students."

Watch more above.

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