The cruelty of some people cannot be underestimated and I cannot see how any agency no matter how well funded can prevent all the cases.
The correlation of abuse with ‘live in’ fathers or other non-married type of arrangement is very high.
Based on the really horrific cases I have read about over the years, I couldn't agree with you more.
Unfortunately, there have been no validated studies done in this area because the conclusion (that children are nurtured best in loving heterosexual families (natural or foster) with married parents) is too un-PC for the social services "experts" to accept. I know this is too harsh, but it seems like the severely abused and murdered children are considered just grist for the social services' "we need more personnel and money" mill.