The ineffectiveness of entertainment
Entertainment media cannot be used to cure America's social ills. I know someone with an anger problem who watched the "Killer Instinct" episode of the Incredible Hulk and still remained abusive and did not change.
Also, this person is a racist, and when they watched All In the Family, they sided with Archie's racist viewpoints. When the program presented a moral lesson about the racism, he merely became upset at the program.