H.W.
For me (with all my baggage) my job is to guide, nurture, protect and be a model for my son. Not necessarily in that order.
I think nearly everything else (dietician, educator, reader-out-loud of books, etc) falls under that umbrella.
R., I am not surprised that you are struggling with all of this. I'm not sure why someone told you that it wasn't your job to protect your son, most especially given the circumstances you've described in the past. I also think the rationale that it's "not my job/that's God's job" to protect your son...well, I don't quite have polite words for that perspective and I don't take that as any Christian philosophy I'm aware of.
Your situation is one which leaves me scratching my head at the wisdom of this family court judge. It's also the same sort of situation which has compelled many women to take their kids out of the country. It is heartbreaking that some parents are having to literally kidnap their children in order to keep them safe.
And just to be very clear, I'm not advocating that. I am saying, though, is that somehow some judges are so skewed in their thinking and that it is not uncommon for judges to place children in the custody of their abusers.
I do not know why. I wish there were more peer review of these decisions and ways to appeal without going broke.
I wish I could say something to make you feel better. I'm not sure I can come up with anything, other than to say that you are a good mother for knowing and caring and doing what you are within your legal limits to do. That probably is a rather piteous consolation, but I have to believe, R., that one day your son *will* see the light. It may take until he's of age. He may decide to ask for emancipation when he's old enough if he comes to realize that he needs to be away from his father. (My maternal half-sister did this in order to live with her father.)
I'm sorry this is so damn shitty. I hope one day your son realizes what a brave, strong mother he has. You probably don't feel like it today, but you really are, R..