Because Uncle Walt just loved them commies . After the second World War , many in the U . S . were gripped by an overwhelming fear of communist infiltration . Disney believed in the Red Menace , and in concert with other leading industry executives , formed the anticommunist Motion Picture Alliance for the Preservation of American Ideals MPA . In addition to serving as the MPA ' s vice president , he testified in front of the House UnAmerican Activities Committee against several labor organizers , who he accused of motivating his animators to strike . Disney also accused the Screen Actors Guild of being a communist front , and claimed their 1941 strike was a socialist p l o t t h i n g s y o u p r o b a b l ydidntknowaboutwaltdisney