I don’t know… we have 6 and 7 year olds and we simply do not buy soda for them and limit consumption of that, sugary cereals, etc…
What you pointed out is true however you also missed alot. The fact is that we have highly addictive consumables and mediums all around us. Nicotine, alcohol, porn, gambling, marijuana, etc….
I bet the number of people as a percentage now addicted to internet porn is well over the 1/3 increase that you cited addicted to sugar. I would surmise that addiction can be just as detrimental to our kids as soda.
Clearly the introduction of more and more destructive/addictive products and mediums increases the strains on the population in general.