Fisherman - What does that have to do with the legal duty of the guardians to protect their child physically?
You blamed the parents for not protecting their daughter which resulted in her continued abuse.
Since the father is negligent in his responsibilities in caring for his family why does the Watchtower not take any action against him? He's an Elder to start with. But surely it's a gross sin to be responsible for allowing the sexual abuse of your daughter and as such, why is he not disfellowshipped?