I think you all are putting a lot of responsibility on parents to fight a pervasive culture that is far more interested in making money than in producing model citizens. This is a very, very complex issue. Parents might have some effect if they would all act en masse, but it cannot be solved by individual parents or even all parents as long as everything from our TV commercials to our popular music constantly drills into kids' heads the messages that adults are idiots, that crime and rebellion are cool, that insolence and profanity and misogyny are acceptable, that the most important things in life are making money and owning luxury items, etc.
My parents weren't particularly strict and I wasn't particularly rule-abiding as a kid. But it wouldn't have occurred to me to swear at my parents because nobody I knew -- nobody on TV, nobody in real life, nobody anywhere, as far as I knew -- ever did that. Simple as that.
Even the most extreme forms of youthful rebellion in the media when I was a teenager -- say, the veiled references to sex and drugs in rock music -- seem like Disney lullabies compared to the what my kids listen to these days.