> I've always been a cautious skeptic of ADHD in children. On the one hand I know ADHD is a thing and that it legitimately affects some children ...
They explicitly say that they know it affects some children, but they're concerned that it's overdiagnosed because the symptoms have overlap with normal child development. This isn't some kind of uninformed conspiracy theory, it's a legitimate concern shared by experts in the field [0].
My fear isn't that experts get confused and mix up real ADHD with normal childhood, my fear is that parents expect too much of their kids and convince their family doctor (who isn't an expert) to diagnose the child and prescribe Adderall. That fear is totally compatible with ADHD also being a real thing that actually needs treatment in other children.