I'm not an MD, but I am surprised by the conflation of ADHD with mental illnesses, which then leads to contradictions elsewhere in the article.

For a start, there IS a gene responsible for ADHD, and brain scans of people with ADHD show markedly different brain structures. Like autism the spectrum is a platter of traits you may or may not have, rather than a scale of severity, and a person can have severe ADHD symptoms but only moderate impairment if they are in the right circumstances (think: financially stable supportive family in which they are labelled 'creative').

Also in common with autism, the comorbid anxiety and depression are mostly due to others' prejudice towards those differences rather than any inherent link to the neurodivergence itself. Historically, anxiety and depression were linked to lefthandedness, but people talk about that less now that society has become less bloody awful to lefthanded people.

Neurodivergence throws the p-factor idea out of the window, too:

Faced with 20,000 more negative messages by the age of 12 than neurotypical people, neurodivergent kids go one of two ways:

"Nothing I do is good enough, so screw everyone!" (Oppositional-Defiant)

"If I can just be good enough, they won't reject me" (Rejection-Sensitive)

An ADHDer is equally likely to be very agreeable as to be very disagreeable.

The p-factor is also nonsense, since it conflates biological traits such as cognitive dysfunction (attention etc.) with behavioural traits such as self control. The latter can be learned or treated with CBT, but you cannot treat randomly firing neurons with breathwork.

It would be useful for the medical profession, let alone society at large, to have a firmer understanding of neurodiversity.