Digital sales overwhelmingly use "buy" as the term in their UI, not "rent". Rental is a separate thing, and I don't think roughly anyone is saying rentals should not exist in any form.
This is just pedantry, and incorrect pedantry at that. BUY does not always mean you gain ownership. You can BUY a license or a haircut and you don't own anything.
Are consumers confused in practice by what happens when they click "Buy" on the playstation store? Does anyone really thing Buy here means they will be able to download the game onto their computer and play it there?
Fine, pass a regulation that makes online stores change the word to license or whatever. Will that relieve your sense of persecution? Or would just you find another way to cast game publishers as the conniving evil empire (market control, collusion to reduce consumer options, etc.) because they aren't giving you what you want?
These days, they mostly don't. California passed a law that required clarity (good), and now most things accurately say "license" instead of "buy."
(Not universally, but in many cases.)