My point is that DRM is still not intellectual property.
The DMCA prohibits circumvention of DRM, even when there is no copyright infringement.
It's illegal for an author of a story who still holds the copyright to it, to download a DRM'ed version of the story and then break the DRM.
It's illegal to circumvent DRM to unlock works in the public domain.
The Unlocking Technology Act of 2013 was meant "require the infringement of a copyright for a violation" when circumventing DRM, but it and others like it never passed.
Yes, DRM is used as a technological means to enforce intellectual property rights, but get rid of property rights completely and it will still be illegal to circumvent DRM.