The hyphenated neurotics play on neurotic liberal guilt.
Hollyweirdos were the worst offenders b/c they were notorious proselytizers-—out to change the culture without the knowledge and consent of moviegoers.
Watching TCM you see Blacks as ignorant ghetto-types-—in the movies, they were servants, boot-polishers, lackeys -—b/c the moguls employed Blacks in that capacity in their homes and businesses.
Even their names = Stepinfetchit.