The Realness wrote:
In no case does a university degree or license from the government legitimatize a discipline. The fact that psychiatrists completed medical school and residency does not in any way prove that prevailing psychiatric theories and treatments are scientifically valid. University educators can be wrong. Government regulators can be corrupt and incompetent. You have to be a complete and total failure of a human being to believe in psychiatry just because practicing psychiatrists fulfilled the legal requirements to qualify as “physicians” in the eyes of politicians and bureaucrats.
You seem to be confusing "legitimacy" with something like "effective," "close to the truth," etc.
In the long run, a field that proves itself ineffective, based upon lies, etc. *might* lose legitimacy, either through a legal-rational process of changing standards of accreditation or through a loss of faith in the public, which would probably trigger the former anyway.
As it stands, there's every reason to believe psychiatrists are "legitimate." The system of accreditations is all there, there are licensing bodies, exams, boards, professional societies, and numerous interlocking social relationships between organizations like schools, prisons, etc. which rely upon the services provides by the head-shrinkers. They're legitimate, brother.