I have a redacted file but getting anyone to really help and negotiate adequate contact seems impossible. There doesn't have to be actual physical/emotional abuse for a 'surendered' child to feel abandoned and undervalued. The right of the parent to remain anonymous seems to overrule the needs of the child.
The Spectrum project looks interesting, I'll try and track down a copy.

Is there anyway to reunite the children put into state care in the 70s? Those that weren't adopted have very few avenues to try and find their birth parent, is this something that is being addressed in this process?