I think sugar, especially high fructose corn syrup, is even worse than alcohol, tobacco, crack, and heroin.
Sure, you can eat yourself to death. That affects you, and those who love you.
Alcohol can affect people who have nothing at all to do with the drinker, as well as affect their families, for generations to come.
I hope that you are trolling because if not you are so clueless that it amazes me someone could be so sheltered from reality, though I’m also happy that you don’t know either, it sucks.
The #1 offender causing insulin resistance is sugar, there's no controversy around this.