I'll give you an example, where as have you ever heard of the tree of knowledge, and if so, do you know what happened to Adam and Even after they took a bite from that tree ? Hollywood has provided a platform ( a tree so to speak that has many branches formed, and these branches reach out far and wide), and it bears many fruits that can be consumed by the innocent as well as by the bad in life.
It can reach people who had not been affected yet by the very things that you love to write about in examples of. The ID channel is the worst I have ever seen these days, in which is found as a limb branching out upon this extended tree of knowledge, and it is teaching things that robs many peoples innocence from them (they have to grapple with and become concerned with such things in life afterwards), yet we love to visit this channel so much today as being entertainment but why ?
How does a channel which bases all of its programming on real crimes, lead to social change? I asked you to provide examples of Hollywood promoting a social agenda. While I agree that vile, disgusting things, once seen, cannot be unseen, how does this change societies attitutes to marriage, divorce and family life.
You asked "Why would people visit this channel?". Why do people slow down at accident scenes, or run to watch fires. Why do we know the names of all of the serial killers, but not their victims? People are fascinated by the gruesome and always have been, but I don't see how this affects social change.
There was a case in Canada where a man stabbed another man to death while having sex with him, dismembered the body, and then mailed body parts to famous people all across the country. The killer made a video of the murder and dismemberment and posted it online. News media coverage broadcast details about the murder, including the name of the website where the murder video was posted, and the website crashed from all of the people trying to access and view this gruesome video, until the police forced the website to remove it.
I take care in what I watch. I would never want to see that murder video because, as you said, what has been seen cannot be unseen. I don't watch porno movies, or snuff films. I don't watch programs which degrade, exploit or humuliate people because I don't find any of this interesting or entertaining.
But I don't see what real crime stories have to do with Hollywood leading the attack against traditional marriage.