it’s disproportionality middle class white people that seem to get diagnosed in adulthood.
he was of the belief that the overwhelming majority of children diagnosed with with ADHD had suffered ACEs and this is what triggered it.
That sounds like a classic causation/correlation issue.
Let's say ADHD is normally distributed over the population (which is unlikely because the deficits mean it's more likely to be in poorer/less resourced families). Children with fewer resources and more ACE are more likely to get diagnosed because the parents can't finance away the issues. But also, chances are if the child has ADHD, one parent has as well. So are the ACE a chicken or egg, or a little of both? ADHD means a higher likelihood of offending. Parent offends = ACE. But that's genetic, not a 'trigger'.
The MC parents cover it up with money, time and resources, until the MC adult seeks a diagnosis.
I've been mulling this over a lot. DD got a very early diagnosis. She had classic boy type ADHD so it was noticed and diagnosed. But our tutoring and parenting and resources and management and tricks and tips and all that helped a great deal and means I doubt very much she would get a diagnosis push from school now. Some teachers look genuinely amazed she has it when told. She has learned to mask, code-switch and generally work with her ADHD. She isn't 'cured' though.
It looks like ACE 'trigger' ADHD but when I look at the children with the same diagnosis and ACE, they are much worse now than DD is. Because their parents can't throw money, time and resources at their child.