I think the problem is that we are obsessed with these things in unhealthy ways. Violence is conflict, so somewhat necessary for compelling storytelling, but we have taken it to a repulsively fetishistic level. Every show or movie has to go further than the last. Remember what the old Law & Order show was like? Every episode wasn't a multiple rape/homicide case. And the torture-porn movies are out of control (Saw 2 and on, Hostel, the new Evil Dead). For all the fear mongering about children not knowing how to differentiate between video game violence and real violence, I think people have forgot that adults have a seriously unhealthy relationship with it as well.
As for sex, it's the fact that we obsessed with it somehow being wrong that makes it unhealthy. There is nothing wrong with the human body or sex. It's normal and natural. But we act like it's a big sin. And the unrealistic body image problem has little to do with sex. It's more of an amorphous "you are a worse human being if you can't be this" message, quite disconnected from sex most of the time, and photoshop/editing/makeup has a lot to do with it.
Just my opinions.
As for sex, it's the fact that we obsessed with it somehow being wrong that makes it unhealthy. There is nothing wrong with the human body or sex. It's normal and natural. But we act like it's a big sin. And the unrealistic body image problem has little to do with sex. It's more of an amorphous "you are a worse human being if you can't be this" message, quite disconnected from sex most of the time, and photoshop/editing/makeup has a lot to do with it.
Just my opinions.