I believe there are quite a few scientists that agree with you. Some are trying to rename Alzheimer's to Type-3 diabetes. There are some articles sprinkled throughout nih.gov PubMed on this topic.
I consume a lot of sugar. I’m not diabetic or pre diabetic. I would suspect underlying inflammation leads to some nasty effects. The same for heart disease.
I think I like the buzz. I go hard on hot sauce too. The endorphin rush from hot sauce is amazing. I bring a fresh bottle with me every time I go to a new restaurant. Sometimes when I leave it’s empty.
Sugar.
I think the correlation is more so to sugar.
I too had a loved one with Alzheimer’s, and there was definitely strong reason to believe sugar was a contributing factor.