There is so much evidence of this connection piling up ..

E.g.:

Proximity to golf courses where pesticides are used -> Parkinson: https://news.ycombinator.com/item?id=43933580

Farmers using pesticides have 60% higher Parkinson risk (2019): https://nos.nl/artikel/2302396-landbouwgif-kan-kans-op-parki... (Dutch)

Parkinson should be labeled as profession-linked disease for farmers(Swiss): https://www.srf.ch/news/schweiz/pestizide-als-krankmacher-pa...