Sugar itself, in its processed form, is quite unnatural and causes cravings and addiction.
Our hunter-gatherer ancestors didn't get much sugar aside from fructose.
Conclusion: sugar is mostly used by the industry because it's addictive.
We can talk about if this sugar has pesticides or other substances mixed with it in the post process that are toxic, but this trend of people saying that glucose is addictive is ludicrous. Unlike real drugs, we really need it to live. Would you trust somebody saying that oxygen is a drug and people should stop consuming it?
Even though both are found separately in nature, it doesn't necessarily follow that their combination is just fine, especially in the volumes consumed in a typical Western diet.
If sugar isn't addictive at all, why do so many people have cravings for sweets? Cravings are a major hallmark of addiction.
While you seem to be arguing against a strawman that the existence of glucose in our metabolic systems is unnatural, thus sugar is addictive? I think your counter points are a tad tangential compared to the actual points made by the parent comment.
There is no physiological requirement for dietary carbohydrates. There is a requirement for glucose, but your body can create it from non-carbohydrate sources including the acetone produced by ketones. https://en.m.wikipedia.org/wiki/Gluconeogenesis
This is literally the worst justification for anything.
Even the “unprocessed” food we eat today, including plants or dead animal flesh is nothing like what the hunter gatherer ancestors ate.
You can put ungodly amount of sugar in your tea if you squeeze half a lemon into it and it's delicious.
Also, a glass of orange juice is about 1tbsp of sugar away from coke.
