I'm still trying to digest that first part, but this quote has weighed on my mind heavily as well. I do not know of any indisputable proof of "ok" for everyone in regard to autoimmune symptoms, blood testies barrier being broken, etc etc.
Everyone isn't the same. Our immune systems are a bit individualized as well IMO.
Here's one for you, I understand you are a dentist, and far as I can tell, a very smart one at that. My mother became very ill eon's ago, and nobody could figure it out. After much BS, appointments, being referred to as crazy, in your head, etc, etc, etc, she came to the realization that it was the mercury fillings in her mouth making her so sick.
She had the fillings removed, and replaced with the white type, and in a matter of months, she was back to her old self.
As for myself, I have no mercury in my mouth, as I am so much like my mother's body type/system.
Anyway, I don't have all the answers, and don't know of anyone else that has all of them either.