Sugar is not addictive nor is it "much more harmful than alcohol". No one out there is just eating spoons of sugar because of its addictive properties.
Your post about obesity doesn't imply it's all about sugar.
One of the reasons obesity is such an issue is because of the combination of sweet and savoury foods that are very calories dense and not very satiating.
“No one out there is just eating spoons of sugar because of its addictive properties.”
Says who?
Go check how much sugar is dissolved in soda, it’s more that a spoonful and ask yourself why? .