Litchick - you are right to say that the state is not a good parent and you acknowledge that many children are already so traumatised by their pre placement experiences that it is difficult to care for them. However I think you need to look at the reasons why the state is such a bad parent.
Many years ago children coming into care were placed in children's homes and left there sometimes for their entire childhood. Many were abused in these establishments and many were sent to Australia as child migrants and were horrendously abused out there. This awful process was still being carried out until the mid 60s.
Nowadays, children (apart from teenagers) are almost always placed in foster care (apart from those who are adopted. There is a national shortage of foster carers and it is unbelievably difficult sometimes to find a placement for a child. Siblings have to be split up because a foster family can maybe only take 1 or 2 children. Another problem is the huge growth of Independent Fostering Agencies that have sprung up in recent years and are making vast profits. They charge local authorities around 4 times the amount the l.a.s would pay for "in house" foster carers, though of course pay the carers more. When a l.a. can't find a placement they are forced into having to "buy" one from an IFA and this can be anywhere in the country. Then because of lack of resources in SSDs and huge budget restraints they sometimes have to move the child from the IFA when an "in house" placement becomes availabe.
I have worked in the system for over 30 years and have seen huge changes in the children who are coming into care. Many of them are exhibiting major behavioural problems at quite young ages and many exhibit distressing sexualised behaviour. I have the highest regard for foster carers who try often against all the odds to care for these damaged children and many are very successful, but there aren't enough of them. So what are SSDs to do - you can't force people to become foster carers. I don't know any social worker who is not concerned about the way children in care are cared for in the system and is not wholly aware of the problems.
SSDs like all other public services are totally under resourced and unsurprisingly there is a national shortage of social workers, excacerbating the problems. I don't find it surprsing that social workers are leaving the profession in significant numbers, why would anyone want to be put in a position where whatever action they take they are deemed to be in the wrong.
I think your criticism of the way in which children are cared for in the care system is shared by many many social workers. The difference is they know what the problems are and know that nothing is being done by successive governments to address the issue.
OK another rant but I feel the need to defend social workers and foster carers who are doing their level best for these damaged children.