40 years huh? Isn’t that about the time that the last original thought was made into a movie? Also, every movie wasn’t a skin flick back then. Also, they didn’t have preschoolers cursing like career Navy men. I didn’t notice a whole bunch of creepy homosexuals starring as leading men (at least the ones that were, ahem Rock Hudson, hid it well).
You'd have to go back further than that. Anything from Three's Company to Porky's was pretty sleazy.
The difference today is the constant pushing of the left-wing political agenda down the throats of the public.