Hillary Clinton isn’t wrong about the role that TikTok and other social media play in the spread of anti-Israel propaganda, but it’s clear now that there is something worse than brain-melting short-form agitprop: the elite celebrities of the arts. Once a certain coterie of actors and musicians and writers decided to spend most of their time signing vapid open letters about Israel, it was inevitable that they would put their names on one so aggressively ignorant that it would discredit