Racist and discredited ideas behind the “Great Replacement Theory” are fueling the rise of authoritarianism across the globe. Ibram X. Kendi is professor of history and the founding director of the Howard University Institute for Advanced Study, an interdisciplinary research enterprise examining global racism. He joins host Krys Boyd to discuss how authoritarian leaders tap into the fears of white populations to tighten their grip on power at the expense of Black and brown people worldwide. His book is “Chain of Ideas: The Origins of Our Authoritarian Age.”