Difference In Cause Of PD Symptoms, On Medical & Chiropractic Websites

This video is "EXCEPTIONALLY" interesting in that I compare what medical websites blame for the cause of the 24 symptoms of Parkinson's disease, which is: "cause unknown", then read what chiropractic websites blame as the causes for those same 24 symptoms, which is: - spinal curve, faults in the cervical spine & sacral-pelvic faults. --- By the way, what is listed on chiropractic websites as the causes of these 24 symptoms, are the same as listed in Dr. James Parkinson's book as the causes of Parkinson's disease symptoms, but medical leaders still keep ignoring the causal facts in this book. --- Is that because medical leaders don't want these symptoms corrected (or cured), specially by chiropractors? --- I have also referred to physiotherapy websites and they too, blame the same causes as chiropractic websites. --- It appears to me that there is some sort of a scam going on here???