The button said "Buy" and it was next to one that said "Rent". I bought it.

If they choose to make retrieving my purchase from the warehouse difficult, then I will take it by force with a torrent.

True, but that's marketing. Without a DRM-free digital copy, it's still "For as long as we allow you to have". Steam also doesn't allow selling "licenses" or whole accounts. All money paid to streaming and "buy" on most platforms is for temporary, pretend purchase. One exception of media distributors is GoG where offline, DRM-free copies are offered.