The "Stockholm Syndrome" theory is even more crackpot than that. Yes, absolutely that's true: the person this theory is based on has said multiple times over the years that the reason she pretended to sympathize with her captors was to protect herself from an over-aggressive police force. Pretended is key here, she did not actually sympathize with them at all; it was purely a manipulation on her part part to survive (and no shade here she was very smart and I love this for her). However, the psychiatrist's theory about it was that she, as a woman, developed feelings for her captors because of, in his mind, the latent sexual desires of women to fall for strong men and to be dominated by them. So, yes, as usual when our bunk science is not based in racism it is usually based in some outlandish sexist notions (and sometimes both!).