I should like to advance a conjecture which I lack the qualifications to adequately develop: The global Left, and the Israeli Left most of all, perceives that the clock is running out, and has worked itself up into a froth of hysteria against Israel. The world of John Lennon’s “Imagine,” where there are no countries and no religions, is about to dissipate like last night’s marijuana fumes. The demographic time bomb that worries the Left is not the relative increase of Arab vs. Jewish populations between the Mediterranean and the Jordan River, speciously cited by John Kerry and a host...