Racist and antisemitic threats are wrong and should be treated appropriately, which is to say, through academic disciplinary and legal methods targeted at the individuals who issue such threats, not through the deployment of riot police against masses of peaceful protesters. But a big difference exists between being threatened and being uncomfortable, and critics of the protesters – and the anti-war movement in general – blur the two.

Exactly. If there are actual threats or instances of antisemitism going on, punish the perpetrators through the appropriate existing channels. Don’t unleash violence on peaceful protestors based on some vague notion of “discomfort” with opposition to the war.