That's not what's being argued. You don't own a picture just because you're in it and this has been proven legally on numerous cases, the story behind the LUL Twitch emote being a relatively recent example.
Trump can take a selfie and put it on a shirt. If I take a picture of him and upload it to my site, I can sue him if he uses that picture instead. The argument is that the jail can too.
They don't own the copyright on someone's likeness. They own the copyright on that specific image.
Exactly, like photographers have copyright of their photos. It would be hilarious if you needed to own the subject of the photo to have copyright. The movie industry would probably collapse overnight.
Unfortunately, I have the feeling the movie industry would be overjoyed if all their actors were slaves....