nein! nein! nein! nein!
Even if you could come up with an original story, pitch it, and say it gets picked up. the problem with Hollywood is just like anything else in america it's about maximizing profits. So you have the investors and the big companies they don't want to take "risks" on "original" ideas, so they will change your story, change the ending to be happy or whatever they feel is best and at the end, it's their movie, not yours.
Take Inception for example. That was an original story, nothing like that has been done before and it was a massive success. But it almost never happened. It only happened because Christopher Nolan is such a powerhouse he was able to convince the investors (warner bros.) to trust him and give him a huge budget required for a film like that. That is not normal in Hollywood. If it was just about anyone else, the movie would have never been made.
Inception also proves wrong that the viewers are to blame for the lack of original stories, as it generated over $825 million dollars worldwide.
Sure, we can all watch older classics which many of us do, as shown with the popularity of Netflix and the likes, but that doesn't mean we shouldn't be able to complain about the current state of Hollywood, which lets face it, is pure shit. It's no different than the music industry or anything else which only cares about money, nothing more, and as a result, we get worse and worse products because they all just try to copy the blueprint of what has been successful in the past and as a result we get the same type of shit over and over.