I agree that even when it's necessary to severe the child from their natural family due to abusive parents it's not easy or pain free, quite the opposite- there's a reason why it was that cousin who had a particularly rocky time of it during his teen years. At least he was able to maintain some contact with his paternal relatives(his natural parents weren't together at the time of the abuse).

I'd read about genetically controlled sexual attraction but not thought about it's implications on bonding. I admit I've thought more about the inverse - children who are raised together from a very early age rarely form sexual bonds even when they are not actually related (such as in Isreali communes). The interaction of nature and nuture does have strange results sometimes.

Your opinions match mine fairly well so it was easy to be courteous.

Now if I was discussing the state of the children's aid and fostering system where I grew up ...... but I'll save you the rant.