Look, it’s real simple: they hate us:
The MPAA is a hate-sink, a front to protect its members from negative PR. But unlike the similarly purposed Lodsys (and many others), it’s easy to see who the MPAA represents: Disney, Sony Pictures, Paramount, 20th Century Fox, Universal, and Warner Brothers. (Essentially, all of the major movie studios.)
The MPAA studios hate us. They hate us with region locks and unskippable screens and encryption and criminalization of fair use. They see us as stupid eyeballs with wallets, and they are entitled to a constant stream of our money. They despise us, and they certainly don’t respect us.
Yet when we watch their movies, we support them.
They use our money to buy laws that are hostile to us, and will continue to do so until either the succeed or we get real campaign finance reform.
More here, which includes a video you should watch.