IN HIS MEMOIR, the Israeli journalist Hirsh Goodman described how he returned home from the Six Day War in June 1967 to hear the country’s founding father and first prime minister, David Ben Gurion, speak on the radio. “Israel, he said, better rid itself of the territories and their Arab population as soon as possible,” recalled Goodman. “If it did not Israel would soon become an apartheid state.” Goodman was born and raised in apartheid-era South Africa. “That phrase, ‘Israel will become an apartheid state,’ resonated with me,” Goodman wrote. “In a flash I understood what he was saying.” In...