“O'Brien spent years winning brownie points with Zionists by demonising Jeremy Corbyn and his supporters as antisemites. Attacking the left from the left is lucrative business if you're a journalist. In fact it's the only way to be openly left in British journalism. Your role as a left-wing journalist is to delegitimise what you're supposed to believe in while maintaining the pretence of plurality. Your job is to say “it's fine to be left wing, but not like those left wingers. They're all cranks.””