I think many students have learned that critical thinking and expressing unpopular opinions will be punished severely.
The University of Virginia was founded to promote free enquiry. Sadly it is hardly the only example of academic repression sweeping US universities:
“I expected that I was paying this fortune, all this time and energy, to learn how to think. But they are forcing you to think the way they want you to think,” Park told Fox News. “I realized, wow, this is insane. I thought America was different but I saw so many similarities to what I saw in North Korea that I started worrying.”