Photo by David Levenson/Getty Images In David Baddiel’s new documentary, Jews Don’t Count, broadcast last night on Channel 4, the comedian posits the idea that Jewish people are actively or inadvertently discriminated against because progressives don’t care about anti-Semitism. Anti-Semitism is a real and present problem in British society. It is crucial to understand it and dismantle it. At its essence it is a conspiracy theory, one that claims that Jews have secret control and power, or that Jews are vermin, corrupting or “infesting” our society – sometimes both of these at the same time. Because of its conspiratorial nature,...