I almost hate to point this out, but religious organizations haven't a better record of protecting children than CPS.
My take away from history is that people themselves, even those who are religious, can work together without statist force, to help children.
While even families can be vectors for abuse, as you have experienced, they are the least likely vector for abuse, and families working together with their peers can probably best help themselves to protect their children.
I'd be opposed to creating institutions such as those run by church or state, or empowering those presently extant, to be more involved in protecting children.
It's Cultural Marxists... they've infiltrated all facets of society, governmental and non!