I think I understand what you're saying. I'd rather watch Monster 100 times than The Sound of Music for example. It doesn't mean that I have sympathy for the devil though because I don't. I just think it has to do with the fact that those happy go lucky movies (people) aren't real. I don't believe in the home with a white picked fence and everybody is always happy, they don't hurt each other, the dog never dies etc. It just isn't real, it's not happening.
If people would ask me to write a horror story, no problem. A family comedy..... eh..... ain't gonna happen because I don't believe in family comedies. Horror is happening all around us, comedy not so much. Wish it was different.