I strongly agree with you ! My husband retired from his dental practice in 2013 ,he was 72 we traveled the world in 2018 he was diagnosed with mild cognitive impairment ( MCI) and then along came covid in 2021 we both took the vaccine and he started to decline . In 2023 we took a short cruse and he contacted covid and has been slowly decline. 7/13/25 we went to the pharmacy for a Singles vaccine and was given Covid Vaccine. Since that time his memory has Declined drastically. So yes I believe the vaccine is responsible.