I’m an opinionated Jew with a PhD in the history of antisemitism, but I find it daunting to weigh in on the debate about antisemitism in the Labour Party. To describe the accusations as disproportionate is to risk being branded an antisemite. But while genuine instances of antisemitism should be tackled, there is no more of it in Labour than in other parties. The sustained offensive by the Labour right and by Conservatives is not only unfairly damaging the party and the left in general, it also unthinkingly reinforces antisemitic motifs.