Why did the American anti imperialists league condem imperialism?

The American Anti-Imperialist League condemned Imperialism primarily because its members believed that it contradicted the core American values of democracy and self-determination. They argued that imposing control over other nations undermined the principles of liberty and equality that the United States was founded upon. Additionally, they feared that imperialism would lead to entanglements in foreign conflicts and a departure from the nation's isolationist traditions. The League also raised concerns about the moral implications of subjugating other peoples and cultures.