Let the hand-wringing and denunciations begin. On Thursday Israel finally expressed in constitutional law the basic achievement of Zionism: Israel is the nation-state of the Jewish people. In the seven years since the new provision was first proposed, it has attracted a barrage of criticism from the U.S. and Europe. Foreign politicians have demanded Israel not pass the law, and they have not been mollified by the removal of most of its disputed provisions. A Monday headline at Foreign Policy warned that Israel was “debating democracy itself.” Arab Knesset members ripped up copies of the bill after its passage. One called...