while I enjoyed Stewart as an actor I always had a hard time overlooking the following:

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Stewart was a lifelong, staunchly conservative Republican, which heavily influenced his relationships and activities off-camera. He maintained a close relationship with FBI Director J. Edgar Hoover and acted as an informal informant to help the FBI root out suspected communists and "undesirables" in Hollywood. Because Hoover's FBI frequently targeted civil rights activists and minority organizations under the guise of anti-communism, critics argue that Stewart’s compliance helped uphold a system that heavily suppressed minority voice
https://en.wikipedia.org/wiki/James_Stewart