Anyone who thinks that they have a right to ask for these to be taken down is clearly a leftist who doesn't believe in the constitution. I would also venture to say that they are anti semites themselves as they must not believe in the freedoms of religion, press and speech as it is those that allow us Jews to live completely freely in the US. Stage a protest against the free Palestine movement if you want, but this idea that you can call for the shutting down of a belief or vocalised idea that offends you or that you don't believe in, is a liberal movement that should be eradicated immediately. Everyone had the right to say whatever they want as long as they are not being physically violent or inciting riot or violence.