The protestors imagine themselves as being in the forefront of tolerance to lead into the future ... their behavior exposes them as just a bunch of pliant followers. Somebody says, "TURN" and they comply in unison. Notice the "experienced" protestors displaying their adherence to groupthink.
Looks like a few grannies showed up to protest. I wonder if they even attend Emory.
Either way, they created publicity for Horowitz and his message.