Traveling in America over the past three weeks to speak about my new book, I found a Jewish community in shock, bewilderment and, after the murderous attack last week on a young couple outside the Capital Jewish Museum in Washington, D.C., gripped by rising fear.

Some of the most poignant reactions came from liberals who, on Oct. 7, 2023, had been mugged by a sickening reality. Their belief in achieving harmony between Israelis and Palestinian Arabs—a badge of their liberal identity—had been shattered by the barbaric and depraved attacks mounted upon Israelis that day by the people of Gaza.

Far worse had been the reaction to this by people they had assumed were friends and colleagues who thought like them but were instead demonizing Israel, regurgitating the lies of Hamas and ending their friendship simply because they hated not just Israel but those who supported it. And some were openly anti-Jew.