There has always been a over abundance of crappy movies (Alexis de Tocqueville said it was art in general when dealing with a democracy/republic). There were always crappy books, music, movies, etc. The distribution has changed and production has changed. There were probably crappy handwritten manuscripts before movable type was created, but afterwards the was an explosion of crappy manuscripts because it became easy to create. Its easier and faster to create a movie now then 20 years ago. So yes you will see an increase is crap.
There are some really good movies that have come out lately, you just need to sift through the crap to get there, and that is how its always been. If everything was awesome, then nothing would be awesome. You need crap to gauge greatness.
So I find the "increase in crap" argument not getting to the problem. Copyrights allow the control of distribution. Computers copy information. The internet transmits information. So controlling the distribution is impossible. So the "industries" need to adjust the way they distribute their art. Long ago I used to pirate movies. I got Netflix (both DVD and streaming) and I no longer pirate movies. Why? Because for $17 a month I have unlimited movies to watch, I get to pick the schedule, the content, and the medium (PS3, desktop or phone). Its $17 a month were I was spending more then that buying movies. I haven't bought a movie in months because I can get it on Netflix. They changed the distribution to my liking, and I am okay with the way it works (I was upset when they doubled the price for Netflix, when then split the services so now I have to manage 2 seperate queues, but I will still use it because it still gives me a superior product to Google Movies, Blockbuster, Amazon, iTunes, etc). They need to fix the distribution.