The sources from which our drama, humor and irony can be tapped are becoming extinct. American kids know more about Joe Camel than Ben Franklin. We like poo poo jokes and sports jargon. I can't imagine that sort of thing taking hold in 1990s America. You don't see too many pure horror movies being produced today.
All genres go in cycles.
Good horror, like good comedy, is extremely hard to write. The best works have a long lasting impact. And perhaps it's no surprise that the deepest fears we have are about our own condition, our minds and bodies. All works with clear personal vision. Horror films can't be made by committee.