So you believe that Social Workers, Counsellors, OTs, SALTs with HCPC or SWE registration plus extra training in ADHD and Autism are less qualified than a psychiatrist with NO training in ADHD and Autism? NICE guidelines and best practice disagrees with you. The article you showed just demonstrated what happens when psychiatrists diagnose with no specialist training or use of the recommended diagnostic tools.
I don't understand why you keep going on about this, what your background is, or what skin you have in the game, but you are wrong, and NICE guidelines state you are wrong.
A psychiatrist is NOT someone who should be diagnosing ADHD or Autism without appropriate training and use of the proper diagnostic tools (ACIA, ADOS-2, ADI-R, DIVA-5, QbCheck).
We have very experienced wonderful psychiatrists and psychologists on our team who have undertaken extensive further training to be able to be involved in our assessments. They would not dream of doing the assessments without it. Even when you have there is still lots of practice and supervision to maintain a high percentage reliability needed. One I am working with at the moment has the ADHD training but not the Autism and will only do ADHD at the minute, and only for adults. So even psychiatrists disagree with you!
What is your background may I ask? And why do you feel so strongly about this, and how have you reached such a conclusion when healthcare professionals and NICE don't agree with you? Im genuinely interested (and baffled). To have such a strong opinion on something with such little knowledge of diagnostic assessments I find odd.