Let's make one thing clear. These people aren't motivated by concern for children. They think so, but they're not.
What motivates them is the feeling of superiority. By seeing filth and horror everywhere, they get thousands of chances to feel superior. Doritos support gay people? The Muppets make inappropriate jokes? That makes it so much easier to be a Good Person! Hurray! No need to feed the hungry. Don't bother helping the needy. You're morally superior because you bought a diferent brand of chips and didn't watch that TV show!
What motivates them is the feeling of superiority. By seeing filth and horror everywhere, they get thousands of chances to feel superior. Doritos support gay people? The Muppets make inappropriate jokes? That makes it so much easier to be a Good Person! Hurray! No need to feed the hungry. Don't bother helping the needy. You're morally superior because you bought a diferent brand of chips and didn't watch that TV show!