Fair enough. I still think previous generations were more concerned with obscenity more than ideas and opinions, specifically political ideas and opinions. Think about their censorship of rock and roll. Rock and roll isn't an "idea" per se - it just upset their social mores. Elvis's dancing was "indecent." It simply sounded so different from the music from the previous era - they didn't like the music (or didn't consider it music at all), was too loud, etc. They considered it uncouth an unrefined for a guy to walk out there with an unbuttoned shirt and singing in a way that sounded so different from previous generations. They didn't like any talk about sex in music. "Lewdness" and drug references seemed to be their main preoccupations.