Universities are centres of progressive ideas, progressive as in moving forward.  The Free Speech Movement she conveniently references was founded by students working towards ensuring all Americans, including those of African descent, had the right to vote.  One would consider this to be quite progressive.
Horowitz, Coulter et all bring nothing to the table in this respect.  Their brand of regressive alt right whining, while popular amongst a certain segment, really has no place at a centre of higher learning.