I think you and the author conflated ownership of "stuff" with ownership of--or a stake in--society. All of the things you listed as owning versus the not-owning (whether it's called renting or leasing or subscribing) are trade-offs you made because you value the concept of ownership of stuff over the opposite.
My view is different: I want ownership of society; I want to be a full participant in society, regardless of the actual state of being of the physical and electronic objects around me. This is why, for example, I give money to local journalists on Patreon, and why I deliberately live in a smaller place in a large city where I can pay taxes to a well-funded library system. This is the type of "ownership" I value.
Other things I do, like ride mass transit, subscribe to Spotify, and pay my city electric bill (I wasn't aware that buying electricity from my municipality impacted my "ownership" of anything, as the author claims), are all things I do because I find them to be more efficient or more useful to me. There are things I unequivocally own, like records or my treasured collection of baseball cards, that have value to me beyond my simple possession of them. There are some things I own, like my residence, where ownership has been more of a burden to me than a non-ownership method would have. It's all about balance.
(One last question: Could you clarify "I do my own taxes?" What is it that doing taxes yourself, presumably by pen and calculator, gains over downloading a product like TaxAct and saving the PDF of the result?)