Scripts are already a dime a dozen! The stereotype you see in tv shows of unemployed writers writing screenplays in coffee shops is because writers of those tv shows are making fun of themselves.
An experienced writer could (and does) make an entire first draft of a script for a tv show in less than a day. Before your first job out of college you likely have 10+ scripts for movies or shows written for a portfolio. 99% of scripts written already will never see the light of day— and that includes the ones that get bought!
Hollywood does have genuine shortcomings, but I can guarantee you one is not the lack of scripts, nor even the lack of good scripts.