Earlier quoted context omitted.
By its very nature DRM of media content makes no sense. How can audio and video be delivered to the user without also allowing the user to save and distribute that content later? At some point, the content must be available in unencrypted form, even if that point is when the content is sent to the display, it can just be captured there.
It could be easy to view but hard to save and distribute. Why can't it? Or do you really think these people have no idea what they're taking about?
Fundamentally, I can read or write to any byte in my computer's memory. That includes whatever is coming out of the piece of code that reads in the protected file and then passes it to the video decoder or the display.
Until we have computers that can read and write bytes in such a way that not even a user with full privileges on their own machine can access them (keeping in mind, this user can control the kernel and even the hypervisor), this can't be made to work.
The people pushing for DRM, in my experience, really do have no idea what they are talking about. They tend to be industry lawyer types. People who do understand DRM are usually aware that what they are implementing can be broken, but their VP told them to do it anyway so they can make a deal with content distributors.
Also, the DMCA forbids circumventing copyright measures, so they like to have that as a legal tool as well. As long as they tried something, they can go after anyone disabling it, using the legal system.