You would think that, of all people on earth, Jews would understand the brutal lesson of history: no government, no speech, no slogan, no diplomatic fantasy can replace the right of a human being to defend himself and his family. Jews have been murdered by the millions. They have been hunted, rounded up, disarmed, deported, gassed, shot, butchered, and buried while the civilized world cleared its throat and looked at its shoes. So the phrase “Never Again” was supposed to mean something. It was supposed to mean vigilance. It was supposed to mean strength. It was supposed to mean that Jewish families would never again be left helpless while murderers came through the door. Then came October 7.  Palestinian terrorists unleashed total horror on Israeli civilians, including young people who were hunted, raped, kidnapped, burned, and slaughtered. And in the middle of that nightmare, the ugly truth became impossible to ignore: Israeli politicians had helped create a population that was...