Here is the core problem with Chancellor Dirks' position on Milo Yiannopoulos's free speech rights:
While we have made clear our belief that the inflaming rhetoric and provocations of Mr. Yiannopoulos were in marked opposition to the basic values of the university, we respected his right to come to campus and speak once he was invited to do so by a legitimate student group. The violence last night was an attack on the fundamental values of the university, which stands for and helps to maintain and nurture open inquiry and an inclusive civil society, the bedrock of a genuinely democratic nation.
At the very moment that he is supposed to condemn the violence that suppressed Yiannopoulos's right to speak (and his audience to hear), he denounces Yiannopolous's speech. At first pass, this might look like a version of "I disapprove of what you say, but I will defend to the death your right to say it." But it is undermined by its own verbiage. Dirks does not just "disapprove" of Yiannopolous's rhetoric; he describes it as "opposed to the basic values of the university". And he does not go so far as to offer to defend Yiannopolous's rights to the death; he says merely that the riots, too, were "an attack on the fundamental values of the university".
Notice that this casts Yiannopoulos's "rhetoric and provocations" in the very same role as the protesters' violence. It suggests that speech can be as much in opposition to the "fundamental values" of the UC Berkeley community as the violence intended to suppresses speech. What Dirks' has forgotten is that (with a few famously debated exceptions) no speech is against the basic values of a community whose fundamental value is free speech.