Why does J Edgar Hoover think Marcus Garvey is dangerous?

J. Edgar Hoover viewed Marcus Garvey as dangerous primarily because of Garvey's promotion of Black nationalism and his calls for racial pride and self-determination, which he believed could incite unrest and challenge the status quo. Hoover feared that Garvey's leadership of the Universal Negro Improvement Association (UNIA) could inspire a significant movement that threatened white supremacy and social order in the United States. Additionally, Garvey's connections with international movements and his advocacy for the establishment of a separate Black nation heightened Hoover's concerns about potential political disruptions.