What is truly shocking about that finding is that it is not in fact shocking.
When Lord Sacks said last weekend that British Jews were discussing whether this country will be safe for our children, he was derided for scaremongering. Among British Jews, however, we knew he was simply recounting what is happening.
As our poll shows, many of us are indeed wondering if we should leave Britain if Jeremy Corbyn comes to power.
Before Mr Corbyn became leader of the Labour Party, such a thought would have been unimaginable. Now, it is entirely normal.
No wonder: when our likely next prime minister is — let us not use euphemisms — an antisemite, how could we not worry?
It is traditional to end by wishing our readers a happy, healthy and peaceful new year. This year, at least the first of those words seems a wish too far.