If a physical copy can be, then a digital copy should also be.
If you own it then it becomes inheritable.
It’s software, so if you own it, you can sell or give away as many copies as you want.
I own a Stephen King novel. I'm looking at it right now. Your contention is that I can sell or give away as many copies as I want of it, and if not, why?
No. You can sell your one copy of your book you own. It’ll leave your possession when the sale completes. The new owner can sell it.
Software has different properties. If you own it, you can sell it without losing your copy, so you can keep selling it.
I own a CD. Can I sell or give away as many copies of it as I want?
No, there is only one physical copy for you to sell, and you’re not granted ownership of the music itself. However, if a law were to be passed that grants ownership of the music on the CD, you would be able to sell unlimited copies of the music.
Literally no one is proposing anything similar to that.
I was wondering how many bad faith questions you were going to ask before something like that. They were still good clarifying questions, though, even though intended otherwise. Hopefully you understand the issue with the word ownership better now.