I think my quoted passage says everything it needs to say (emphasis mine):
> which apply to all mental disorders, including anxiety, depression, ADHD, alcoholism, eating disorders, bipolar disorder, autism, and even schizophrenia
All mental disorders!? That is not the kind of claim anyone with a real discovery has ever made. Everyone who claims that their discovery could cure everything in that list is a huckster. He's claiming that mitochondrial issues cause everything that can ever go wrong with the brain! He's simply casting aside the possibility that any of these conditions could be caused by any of the dozens of causes that we know are associated with various cognitive decline (even if there isn't a simple causal link to any specific mental disorder):
* Lead, mercury, or other heavy meatal poisoning
* Neurotransmitter deficiencies or reuptake problems
* Infection and auto-immune issues
* Blood flow issues
* Prions
* Cell death from toxic substances (e.g. huffing paint)
* Problems with myelin sheathing
* Problems cleaning junk out of CSF
The list goes on and on. No, screw all that, every other scientist on the planet is wrong: it's just this guy's one thing that he found that causes all mental disorders. Maybe he'd say "ok but lead poisoning is actually damaging the mitochondria, so I'm still right!" but that's at best moving the goal posts, and at worst obviously wrong: toxic metals damage everything. Other scientists have studied lead poisoning, and the main problem seems to be its action on myelin sheathing, not on mitochondria. Most of this stuff has no causal relationship with mitochondrial damage at all. You have to completely disregard almost the entire body of neuroscience to make the claims he's making.
The list of "all mental disorders" is so vast, so complicated, so nuanced, that we can't even agree on what something like schizophrenia even is. We're talking about the brain: the most complicated system in the known universe. It's not all caused by this one guy's pet theory.
Anyone who comes out of the gate with "Einstein was wrong! Perpetual motion machines! The rest of the world is lying!" can be completely ignored. This guy may not be explicitly claiming that every other scientist who studies the brain is wrong, but they are implicitly claiming that.
