It’s been a rough year for free speech on campus, but there are glimmers of hope in Southern California. The colleges of the Claremont University Consortium have been laying down the law in response to those who act out to advance their idea of social justice.

Consider the case of Jonathan Higgins. In June, Pomona College announced that Mr. Higgins had been hired as the new director of the Queer Resource Center of the Claremont Colleges, which Pomona administers. Elliot Dordick, a student and writer at Pitzer College, looked...