As long as we're nitpicking every sense of the word "own", the strongest legal sense means you're the copyright holder, and every sense downstream of that is some lesser license. Buying a disc is a license to view the intellectual property, subject to various restrictions like only showing it within your personal home.
If the disc is an abstract license, surely the seller will replace the disc if it's scratched. I already bought the license, so what is the real purpose of the physical token?
Somehow the concept of ownership has been twisted to so that obligations only flow in one direction. Rules for thee, not for me.
The point OP is making is that it's not the concept of ownership that has been twisted, there just never was ownership of media beyond owning the actual copyright. Everything else is licensing.
> various restrictions like only showing it within your personal home
Are you implying that lending the disc to a friend so they can watch in their own home is forbidden? Or taking the disc to the friend's place to watch together?
No, those aren't the restrictions. But there are restrictions. First-sale doctrine allows lending. But you are not allowed to play the movie in, say, a restaurant, theater, or other public place.
That's fine, but that's very different from what the post to which I was responding said.