At Syracuse University last year, when liberal hecklers tried to shut down a speech by a popular conservative author of (almost!) six books, College Republicans began to remove the hecklers. But Dean of Students Roy Baker blocked them from removing students disrupting the speech on the grounds that removing students screaming during a speech would violate the hecklers' "free speech." They had a "free speech" right to prevent anyone from hearing a conservative's free speech.
That's what colleges mean by "free speech." (And by the way, my fingers are getting exhausted from making air quotes every time I use the expression "free speech" in relation to a college campus.)"Tolerance of opposing views" means we have to listen to their anti-American views, but they don't have to hear our pro-American views. (In Washington, they call this "the Fairness Doctrine.")
Liberals are never called upon to tolerate anything they don't already adore, such as treason, pornography and heresy. In fact, those will often get you course credit.
You don't have to like her, but you can't say she's wrong here. Go read the whole thing, if you libs truly celebrate "diversity" (digital air quotes).