You're using the term "own" in a non-standard way to make your point. When you buy a Mac, part of the deal is that it runs macOS. However, you still own the Ma

You're using the term "own" in a non-standard way to make your point. When you buy a Mac, part of the deal is that it runs macOS. However, you still own the Mac. You can loan it to others or sell it. You can sleep with it under your pillow. If you don't like the deal, then don't buy it.