That's often all you can hope for. Unfortunately, it's usually the victim who recognizes there's a problem, and not the abuser. So, as unfair as it seems, only the victim can do anything to create change. If you mean Only the victim is able to change, I'd like to hear more about that. But, if you learn to recognize when I'm setting you up to rage at you, and take care of yourself, removing yourself from the situation, or take the family away from me as long as I'm behaving this way, or even call the cops on me, then, being isolated with myself, I might see that at least some of this problem could be mine.
Denial is powerful.
Unfortunately, lots of moms got blamed for their schizophrenic children. In families like this, no one really understands their options without help. Hopefully, whether the client realizes it or not, our interventions begin to meet the real need of the client. I look at any of the options we've mentioned as ways of changing the system, similar to Tina's treating the relationship. I consider that a success, too.