True, one of the reason why I brought this problem up is because society calls it an "abnormal physcological response."
It's kind of common thing in fiction, but it's still weird to think it can happens in real life. It's not crazy, but I just can't imagine to fall in love with my kidnappers. I agree with you, further study is needed!
It's a coping mechanism your brain uses to survive. Its not a rea love that's healthy, it's a reaction to extreme stress. And it's not something that happens under normal circumstances where you're thinking clearly. It happens over time, while isolated, and your mind uses any little kindness among abuse to develop attachments. Manga portrayals aren't really accurate. Essentially your mind breaks. It might help if you think of it as a type ptsd.
Some mangas and even manga readers misdiagnose what Stockholm Syndrome is. But I do get your point, like what is wrong with sympathizing with your captor? But in another sense, isn't it strange to have sympathy to your captor when they actually made something bad to you?
Also, it's a psychological phenomenon, perhaps the term "disorder" bothers you but, think about it. It is unusual behavior.
Don't know why people call stockholm syndrome (dont know any other way of calling it, but i didnt really want to use this phrase) a physcological problem or a disease? It's almost like when in manga, a gay person comes out to his/her family, and their parents say that its an illness and looks for a doctor to treat it. Is it really bad to call it an illness? I am curious.