As someone who follows psychological stuff, there's actually doubt about Stockholm syndrome being as real as people seem to believe it is. It's not in the DSM and never has been. I'm aware that the DSM is by no means perfect, but since Stockholm is such a very specific disorder, we've never been able to "create" any experience that comes close. Considering how awful and abusive reproducing it would be, no one has been able to "prove" its a real disorder in the way many folks have come to believe.

People absolutely defend their abusers, and they can willingly return to such situations out of comfort, but it's not as simple as Stockholm syndrome is supposed to be. The original hostages FROM Stockholm were treated pretty badly by the police who were supposed to be saving them from their captors. So it's sort of understandable why they weren't chafing for justice when the cops were just as callous about their survival.

Someone who grows up like this absolutely doesn't learn how to live. But we have different diagnosis for those people, and often it's something like Sociopathy or Psychopathy, and children with brain damage in certain regions may end up growing up with no empathy for their fellow humans.

Brains are vastly complex and we hardly have a good grasp on more "basic" syndromes and disorders, so it's a very contentious notion.

In this particular context, a young straight woman who has never seen any other adult male could easily develop all kinds of attractions for the one man in her life. There's a reason small groups of people isolated from outside populations are inbred, to some degree. Humans as a whole are great at reproduction, sometimes by whatever means necessary, gross as that can be in regards to being related :/