I've had quite some experiences with the child protective services as well. My wife @bettyboob has quite elaborately blogged about it recently and I'm immensely grateful for the support that you, @canadian-coconut and the @familyprotection have shown on these stories.
Fighting the state because your children need good care can feel like an impossible uphill battle. However some people on this platform would like to accuse you of wrong-doings, I fully support the cause that drives you. I applaud it and I'm here to tell you not to quit. Your support of parents in dire situations can really make a difference, possibly more than you could ever imagine.
Stay strong, Mark.