"I think I could provide a lot more evidence that meat causes most disease than you can in regards to starch."
Unlikely. Starch is the number one killer in the Western diet. http://www.dailymail.co.uk/health/article-2844943/Why-fry-isn-t-bad-thought-Carbohydrates-risk-diabetes-heart-disease-saturated-fat.html
https://www.livescience.com/48969-heart-disease-diabetes-risks-carbohydrate-saturated-fat.html
Simply put, when you overeat carbs, they get converted to fat IN THE LIVER, where one third stays, destroying your liver. Another third spills into other organs, such as the pancreas and heart, where they cause other diseases. One third makes it to the adipose tissue.
When you overeat fat, it goes straight from the blood to the flab, where it causes few problems.
Basically, starch-> visceral fat, the fat that kills.