All across the country, there are professors who push for keeping military recruiters off campus and for banning ROTC. Apparently if they don't like the military, then other people -- such as students -- should not be allowed to make up their own minds whether they want to join or not.
Liberals in general, and academics in particular, like to boast of their open-mindedness and acceptance of non-conformity. But they mean not conforming to the norms of society at large.
They have little or no tolerance to those who do not conform to the norms of academic political correctness. Nowhere else in America is free speech so restricted as on academic campuses with speech codes.