“Antisemitism is stupid. It makes people stupid. It is not a coincidence that the least accomplished leader of the Labour Party is also its only anti-Semitic one.
“If you live in a world of conspiracies, if you think the world is divided into the blamelessly good, the victims, and the unqualifiedly evil, the oppressors, then anti-Semitism is for you.
“We cannot leave the work to the party itself. Supporters have to lend a hand. Depriving the party of a vote is a start.”
Sir Richard tweeted he read Mr Julius' "persuasive" letter.
"As much as Corbyn's lamentable failure to apologise in his TV interview, or the intervention of the chief rabbi, this has persuaded me to change my mind and not vote Labour," he said.
Prof Lipstadt also wrote in response to Sir Richard in the JC that “he sees [antisemitism] as a sidebar, an ancillary item. It is not. It is a cornerstone of Labour’s public stance, and something – just like racism – which cannot be tolerated.”
