there is so much criminal activity on the part of parents, children in their parents' homes are raped abused and murderd by them, who will protect the children from their parents?

brought as a reply to:

there is so much criminal activity on the part of state employees, children in foster care are raped abused and murderd by federal employees, federal employed doctors and nurses who will protect the children from state appointed care providers?

The question that should be asked is:
Which cases are more common relative to their amount?

I believe that false negatives by the government are more common than false positives and more common than true positives.
In short it translates to: the government and its employees as a whole do more good than bad.
Some parents do bad too.
Does it mean that parents raise of their own children should be abolished?