So when does free speech cross into advocating for violence and mayhem as Jarrar the Hutt is openly doing here?
Don't hold your breath. UC Fresno (and I also believe San Jose) are among the most hostile anti-American and anti-Jew campuses in the UC system. There was another UC Fresno professor who tweeted about how President Trump needed to be hanged, and about a monument for President Trump's assassin. I believe that the prof did get a visit from the Secret Service over those. I believe the president of the university did say that those went a bit to far.
Mark