Israel’s champions owe us an explanation. First, they insist that Israel is and always must be a Jewish state, by which most of them mean not religiously Jewish but of the “Jewish People” everywhere, including Jews who are citizens of other states and not looking for a new country. To be Jewish, according to the prevailing view, it is enough to have a Jewish mother (or to have been converted by an approved Orthodox rabbi). Belief in one supreme creator of the universe, in the Torah as the word of God, and in Jewish ritual need have nothing whatever to do with Jewishness. (We ignore here the...