I disagree, because more people eating sugar means that type of food becomes cheaper due to economy of scale. At the same time I second hand suffer because most of my preferred, apparently healthier diet eventually becomes exotic and costs more.
"Sugar" (read: high fructose corn syrup) isn't cheaper purely because of economies of scale. It's largely cheaper because the government subsidises corn farmers, whose corn is then used to produce a cheaper form of sweetener that is used to replace traditional cane sugar (which I believe is subject to tariffs in the US) in soft drinks.