The hysteria about anti-Semitism against Jeremy Corbyn and the left would at least have been more forgivable had it been based on the likely threat posed, rather than on mere offensiveness. The reason that the threat was never discussed in any mature depth by the mainstream media was because it was plainly laughable to say there was any threat to Jews from Corbyn’s Labour. That would have required an open and frequent assessment of the real numbers involved – 56 out of over 500,000 – but also the seniority of those involved.