The Gaza war may have ended, but the genocide libel marches on. That libel, the false accusation that Israel and Diaspora Jews perpetrate genocide against others, allows anti-Zionists to invert the Holocaust, erasing Jews’ Holocaust victimhood and bestowing it upon Palestinians. And given this libel’s ubiquity, it’s worth understanding the libel’s origins, why it was amplified and went viral after Oct. 7, 2023, and why some Gazans dubbed themselves “Holocaust survivors” on social media as combat ceased.The genocide libel is a central plank in “the propaganda war against Israel, which has become one of the most organized and sophisticated narrative campaigns in modern geopolitics,” said Faran Jeffery, director general of operations at the U.K.-based Midstone Centre for International Affairs. It focuses on “framing Israel … as a moral aberration.”This propaganda war builds upon decades-old Soviet anti-Zionism. While the postwar West marginalized Nazi-style antisemitism, anti-Zionism evaded that strong taboo with thinly disguised libels about Israel and “Zionists.” Leveraging that loophole, the contemporary Western Left has recycled the extensive Soviet playbook, and its emphasis is clearly on efficacy over accuracy.