If all psychiatrists and psychologists worked to their standards – assessing the patient as they found them, without applying politically-influenced theories – we'd never have had an issue.
Ten years ago I think I was told that there was a paper investigating the success different psychological theories would make in reality. I was told that they have found that there wasn´t any signification, instead it turned out that some people are especially good in helping.
I am not sure if I remember right, that there has been a common guidance that psychologists must not be involved personally to any extend. Instead they would only apply the theories which they are teached in.
But this would be bold nonsense. In consequence you finally would neglect what you should feel as a human.
And patients (including children) have been harmed, and this might not have been only to any cost-issues but also to the issue that the psychologists are these ones who really know.
PS: I would not say that psychological theories (I know a bit Fritz Künkel) are nonsence, in fact they might be helpful if not ...