Keep in mind, as you read what I write, that I am a type 2 diabetic. My body has a love/hate relationship with sugar. It does not process sugar as well as if I didn't have diabetes.
Now, that said, far from being a deadly poison, sugar is a vital nutrient. It is literally the fuel on which our bodies run, and without it, we would die. It makes no more sense, to depict sugar as if it were an addictive drug, as this article does, than to similarly describe oxygen, or water.
Even as a diabetic, I need sugar to live. Something that I do, on a daily basis, is to measure the amount of sugar in my blood. In someone who is not diabetic, the body does a very good job of regulating it, keeping it within a healthy range. The defining characteristic of diabetes is that the amount of sugar in my blood can easily get too high, and over time, this can lead to serious, even deadly consequences. The flip side of diabetes, is that it can also go too low, which poses dangerous, shorter-term risks. I have to pay attention, in ways that a non-diabetic would not, in order to keep my blood sugar levels within a healthy range.
Now, yes, even for a non-diabetic, too much sugar is not good for one's health. And most of us probably do consume more sugar than is entirely good for us. But the account in the article is, at best, an extravagant exaggeration of the impact of sugar consumption on a non-diabetic. Even if you were to assume that the article was only meant to address those who have diabetes to a degree comparable to me, it's still an exaggeration.