Here is a question, only in part sarcastic: these researchers refuse to put these hypotheses in perspective and embrace modern scientific method. What is it they fear?
There seems to be a huge phobia/delusion thing in psychiatry that is quietly acknowledged and largely ignored with a hope nobody will notice. That is that most psychiatric diagnoses are created by committee, have no scientific basis, and even lack biomarkers. In other words, we don't know which ones are discrete clinical entities, nor even if the notion of a discrete category is valid. I wonder if we should put a name to this delusional fear complex syndrome? Where does delusion stop and medical politics start?
Its a lot like ME would have been many decades ago, before we had oodles of biomedical abnormalities discovered.
Further, psychiatrists use these unproven and unstable theories to coercively treat some patients, including sectioning.
They often lie to patients, and dress it up as encouragement and helpful for a placebo effect. They usually do not acknowledge this can destroy the patient-practitioner trust.
They assemble data for their hypothesis, in as large a mess as possible, yet fail to examine data against their hypothesis adequately, nor to test their hypothesis to see if it breaks. Counter-arguments used to defend their theories tend to be irrational and fallacious, and include ad hominem and strawman arguments.
They know, to a fair certainty, that many of the causative and treatment theories have to be wrong, but nobody knows how many - it could be nearly all of them. So they don't attack other schools of thought. This applies to the whole medical profession, not just psychiatry. Glass houses, stone throwing, and all that.
They seem afraid of losing power and authority, largely due to poor image. Yet at the same time they fail to realize they have lost much of their authority due to medical politics and failed economic theories. This leads to ...
They quite rightly think that medicine needs to be based on solid evidence, but miss that this needs to be scientific evidence. They also fail to recognize that institutional uses of the evidence based approach are increasingly less about good medicine but more about cheap medicine. Doctors are losing control of their own profession.
Argument of many psychiatric theories is by rhetoric and indoctrination, not by evidence, and reason, and most importantly there is a distinct lack of scientific evidence. The mathematical validation in psychiatry, for example by the use of kappa for the APA's DSM, is not proper scientific validation. Its about diagnostic reproducibility.
These arguments of mine apply to a variable degree on individuals, but are largely valid (in my opinion) for the profession.
I think there are huge numbers of very sick and distressed people who need their help, and huge numbers who do not need their help but have it forced on them. I think we need psychiatry, or something like it, but the entire profession needs drastic change. Much of it is unscientific, and this component needs to be removed and placed in alternative psychiatry. How to do that though?
Psychiatry, as a profession, needs a reality check.