Personal experience:
Before I knew better, I would talk privately about viral persistence, neuroinflammation, microclots etc. I never shared that information publicly or claimed to know the biology behind LC or ME/CFS, but when certain prominent physicians and researchers made very certain statements about it I had no reason to not trust them.
That being said, my GP did a terrible job at talking to me about my condition. They never told me «I believe in your symptoms and that they get a lot worse when you do things, but we do not know why it happens». Instead, they jumped straight at asking me about my mental health, fear, activity avoidance long before I ever mentioned any biobabble.
I was told that my reaction to exertion or stimuli was normal and expected when I had been inactive for a long time.
It went so far that I had to get a therapist to write them a letter that said my mental health was not the cause of my symptoms, rather the opposite - I would have been worse off without my fortunate ability to deal with this nightmare.
My GPs’s immediate jumps to a psychosomatic explanation for my condition is what drove me into the arms of the biobabble practitioners. But, it was prominent patients and patient associations that made it so that I knew who the practitioners were.
So in some respect, you could say that the patients/associations and the GPs enabled the biobabble, even though the practitioners and researchers were ultimately responsible for it.