Holocaust appropriation by the Palestinians and their allies seemed to reach a crescendo during the two-year Gaza war. But it turned out to be only the beginning. The desire to appropriate Jewish suffering isn’t new, especially for the Palestinians. But the post-war explosion of Holocaust envy, in which Gazans are encouraged to call themselves “Holocaust survivors,” suggests a wider cultural obsession with what is essentially mass identity theft: a Talented Mr. Ripley -style drama but involving