It's not a free speech issue. It was only a free speech issue when Mayors Bloomberg and Emanuel asserted that they were going to deny permits to CF in their cites. That's an unconstitutional violation of the 1st amendment because it's government action. Here it's just a private protest. No different than us saying we're not going to support a musical artist whose politics we don't agree with.
My statement stands about the constitutional illiteracy which is a consequence of America's public schools failure to teach America's founding documents and the ideas underlying those documents.
For these students to "petition the University" to remove, or ban, a business from its State-owned Campus, means that these students fail to understand that their "petition" requests "the government" to take an action which, if undertaken, would constitute an attempt to punish that business because its CEO exercised his free speech rights, as well as his right to freedom of religion and free exercise.
Sadly, we are yielding up our rights, sometimes without intending to do so--just out of sheer ignorance of the protections of our Constitution and those actions it prohibits government from taking.