Etiology is the known causation. We see the same abusive family pumping out a PTSD, a bipolar, and a depressed child, in my case.
Yep, I pretty much agree with everything you said Muse, apart from PTSD.
Biological depression and bipolar are empirically validated as having hereditary backgrounds. Whilst classified as mental illness, they're actually biologically predisposed to a biological illness that causes severe mental ramifications. Both bipolar and chemical depression (very rare) are biological first, even though classified as mental health disorders. Their classification to my understanding stems to the outcome they produce, being primarily mental versus listing them under biological medicine.
PTSD is just so different. There is zero empirical evidence that PTSD has anything to do with genetics, unlike anxiety which can be a genetic trait. This is another reason why PTSD is being moved out of anxiety and into a trauma category, because there is zero genetic composition to PTSD. Whilst genetics play a role in everything we do, there is no empirical link to it even predisposing a person to PTSD, unlike claims attempting to be made. If hereditary genetics play any role in PTSD, it is so small and insignificant it means little to nothing, because the best science in the world cannot to date come out with any stable, conclusive findings on this facet in relation to PTSD. Lots of hypotheses and such, yet nothing empirical to substantiate any claims.
PTSD is just so unique, hence why it sits right beside DID as the two most controversial mental health disorders to date. This is another reason many who know this don't want DESNOS to succeed, even though it is superior in every way to CPTSD as a label for diagnostic criterion, based on its diagnostic criterion, as people want that controversial label, whether for status or recognition of their trauma longevity suffering.
You can literally expose a person to abnormal trauma after abnormal trauma, and eventually, even the most resistant person will break and develop PTSD symptoms. This is proven by POW's. POW's combine a range of people who have no genetic markers for anxiety or such, yet developed PTSD due to nothing more than the severe stress and trauma they were placed under, the constant unknown of death and so forth, whilst being a POW. There isn't a POW to date who has survived without severe psychological consequences as a result.
Hence... the complexity of PTSD compared to anxiety, depressive or dissociative disorders. PTSD is purely assessed based on trauma severity and its impact upon the person. The others are assessed on presenting symptoms, of which trauma has nothing to do with the ability for them to be diagnosed or not.
Me personally, I think the DSM V listings are to date some of the best the APA have revised towards. Everything takes time, and whilst I do not agree with how thick the DSM has become in attempting to give every day life attributes a mental disorder label, where severity for longevity has been dismissed in order to build a business model, which is what mental health has become... finally the constant revisions from 30,000+ psychiatrists globally are refining what is IMO one of the best DSM's to date for accuracy. Sure, even I can still see holes in some aspects of PTSD and surrounding diagnoses, yet there are also reasons for those, I just don't necessarily agree with them personally.