It's not right-wing populism that endangers Jewish survival in Europe and Canada; it's the influx of Muslims. There's nothing new in the Jewish leadership's habit of kibitzing about the dangers to Jewish continuity from marauding Mormons (their sin is to convert dead Jews). Or, from Mel Gibson, whose movie "The Passion of the Christ” was supposed to unleash pogroms in Pittsburgh, as they falsely prophesied.