No one should be surprised if Jews rush to leave New York. On Wednesday, the Park East Synagogue in Manhattan hosted an event led by Nefesh B’nefesh, an organization that helps Jews around the world “make aliyah” — i.e., move to Israel. That idiom is common and Nefesh B’nefesh is a household name because, for centuries, many Jews have regarded moving to Israel as one of the Torah’s 613 commandments. Some Jewish authorities consider even preparing for aliyah a commandment. In New York, though, the powers-that-be have different ideas. A mob gathered outside the synagogue to scream and chant obscenities...