I assume the same way the steam deck gets replacement sticks. You’d replace the entire thumb cap and run a wire under and to a specific connector. So its unlikely you’ll get a third party solution with capacitive touch but getting official parts shouldn’t be impossible either, just more tedious.
There’s an excellent, albeit 5hr documentary about the history of EVE online, its absolutely incredible
He actively wanted out as seen by the desperate text sent to his mother saying how he “felt like a hostage” that was read aloud by one of his abusers on stream, but due to coersion both financially and socially. In one of the streams his abusers openly brag about how if he doesnt participate in their “game” they’ll take the keys for his car and his apartment until he does.
There’s generally a lot of factors that add up to staying in an abusive situation. From his point of view its likely that there didn’t seem much of an option for him outside of this.
Welcome in! I’m sorry you’re here, now