Pretty sure they mean that they have never been made to not want to play a game just because you had to register an account, not that they've never needed to register an account.
If logging in to something causes that much ire, I have to wonder if the people who think that way know how to make a throwaway email and use fake names. Because it's one of the most ridiculous reasons to not use something.
No, I mean I've never been forced to register an account before being able to play, except with Rockstar PC games. Ubisoft games have asked, but it hasn't been required.
I dont think there's an abundance but there are some out there
Rocket League was one for me where originally I didn't need to make an account but after the epic games update it locked me out of playing at all (even local multiplayer only) if I didn't make an account
Eh I don't like accounts and I don't want to waste my time jumping through hoops to play. It's a matter of principle, and once you're turned off you may as well just get dressed and go!