Game consoles used to mean plug and play instantly and it works every time, but now it means subscriptions and mandatory updates and installation processes and different hardware levels (pro, regular; series x, series s), it's become a bad deal.
So companies move to PC, and now every company has a "client" to try to walled-garden their own games (blizzard, epic, steam, ubisoft, whatever bethesda formerly had, microsoft store, etc).
Games should be games; not work, not con jobs, not contractual obligations.
We need laws that fix the ability to resell digital-only games and programs and media. Whether or not storage is removable.
The analogy isn't about backing up and exporting games you already own, it's about continuing the use of hardware you own beyond the vendor's support.
Sideloading APKs allows management of software independent of a vendor app store. Do USB drives for game archival allow you to install any game, whether or not you bought it from the console store?
I can continue buying SD cards and putting them in my smartphone far after my smartphone vendor, OS vendor, or other developers stop supporting it. On an old enough digital-only console, there may or will be no way to use software that has been purchased for it. There are currently not ways to use software that could be purchased secondhand on consoles because there is no individual market or transfer option for it.
It's a scam.