For me it isn't either/or but I have a bias towards fixing abusive parenting. But I don't think even the government will have much luck with that, when so much "not good enough" parenting can be perceived as normal and forgotten about. Every dysfunctional family is broken in their own unique way, and there will never be a catch-all solution. Heck, it's so personal an issue the only way most people will even know it's a problem is if people bring it up themselves. It's too personal and individualized for people to randomly start talking about and unite under as opposed to issues of the state/politics, when it's likely that there is no solution to be found except cutting off the family and moving on.
Avoiding a harm is not equivalent to optimal way in my mind, but it seems like it is in yours? How does that work?