It has nothing to do with that.
This "movie" is just Hollyweird propaganda gutter-trash, nothing more. There is no interest in this subject by the overwhelming vast majority of Americans. It is just an attempt to normalize the abnormal.
There is more interest in this movie on this website than any other.
It's insane.
People lie about whether or not it's successful (it is, for a movie of its size and distribution) and they feel threatened by its existence. It's nuts.
Have there ever been plays, movies, books about immoral subjects? Well, let's see... Lysistrata, Oedipus Rex, Hamlet, MacBeth, Psycho, etc. etc. etc. ad nauseum.
It's a story, and a good one. I read the story when it first appeared, but I haven't yet seen the movie (though I probably will when it's available in my area).
People try to compare it to King Kong or The Passion as if it's a contest between worldviews. It's not. It's a small movie. It depicts a universal theme (forbidden love) and it's probably the 10,000th movie to do so. The Freeper obsession with this flick is just weird.