The rot goes to the top. “Since Jeremy Corbyn became leader he has made the party a welcoming refuge for anti-Semites,” the document notes. A complaints process meant to address the issue has been routinely subverted at the highest level. “The party’s response [to the problem] has been characterized by denial, discrediting of victims, defence of perpetrators, cover-ups and active victimization of those calling out anti-Semitism.”

Labour’s apologists argue that the charges of anti-Semitism are political hit jobs; that there is plenty of bigotry in the Conservative Party; that Corbyn himself routinely denounces anti-Semitism as a form of racism; and that much of what is characterized as anti-Semitism within the party is really just a form of misguided anti-Zionism.

Bunk. The most damaging charges being leveled at Labour are coming from within Labour. Claims about Tory prejudice may be well- or ill-founded, but they are a classic expression of whataboutism. Corbyn’s denunciations of anti-Semitism overlook his long history of embracing virulent anti-Semites. And denouncing anti-Semitism as a form of racism is itself a dodge, since Jews have also been persecuted on account of religion, riches, rootlessness, rootedness, and other things that strike chords on the far left while having nothing to do with race.

As for “anti-Zionism,” the J.L.M. describes an incident in which Labourites defended the view that it is “the over-representation of Jews in the capitalist ruling class that gives the Israel-Zionist lobby its power.” The sentence captures the truth of who, really, is meant by “the few” in Labour’s campaign slogan of “For the Many, Not the Few.”

Britain’s Jewish community numbers about 280,000, is centuries-old, and has contributed immeasurably to the country’s culture, prosperity, distinction and glory. If Corbyn wins, nearly half of this community has said it would “seriously consider” exiting the country according to one poll. There could hardly be a more unequivocal expression of its sense of the absolute threat it sees in the prospect of a Corbyn government. It would represent the largest Jewish exodus from a Western country since the 1930s.

The progressive left, in Britain and beyond, may choose to ignore, downplay, or rationalize this. Fine. But someone needs to state it plainly: To support Labour is to say anti-Semitism wasn’t your deal-breaker; that it doesn’t put you to shame; that you see it as no threat to your own well-being. Trump voters did much the same when it came to the president’s various bigotries. The least Corbyn’s supporters can do, in Britain and beyond, is admit they’re no better.

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