Mahmoud Abbas, the usually low-profile president of the Palestinian Authority, was widely condemned around the world this week, including by prominent Palestinian intellectuals, after making antisemitic comments about the Holocaust in a televised speech to his party last month. While Abbas’s words and actions rarely command significant international attention, the incident put a spotlight on his deep unpopularity among Palestinians, some 73 percent of whom want him gone, and their growing disillusionment with the PA. Abbas, whose spokesperson disputed that his remarks were antisemitic, was one of the architects of the Oslo peace process, which commenced with a historic handshake...