You eat sugar in some form everyday so it’d be pretty hard and pointless to try and ban it. And potentially more harmful too. Used wisely, just like drugs, sugar can be good for you- that’s why our bodies like it.
Fruit juice regularly contains a small amount of alcohol, yet I'm sure nobody counts it as a drug. Shouldn't we consider sugar similarly? An apple? Not a drug. A candy bar or a soda? Well, it does give you energy and a good feeling...