Literally 3 of the first 6 ingredients are sugar. GrossIngredients in lucky charms (as an example):
Whole Grain Oats, Sugar, Corn Starch, Modified Corn Starch, Corn Syrup, Dextrose. Contains 2% or less of: Salt, Gelatin, Trisodium Phosphate, Red 40, Yellow 5 & 6, Blue 1, Natural And Artificial Flavor. Vitamin E (mixed tocopherols) Added to Preserve Freshness. Vitamins and Minerals: Calcium Carbonate, Vitamin C (sodium ascorbate), Iron and Zinc (mineral nutrients), A B Vitamin (niacinamide), Vitamin B6 (pyridoxine hydrochloride), Vitamin B1 (thiamin mononitrate), Vitamin A (palmitate), Vitamin B2 (riboflavin), A B Vitamin (folic acid), Vitamin B12, Vitamin D3.
Made from oats, and sweetened with Corn and wheat derived sugars (dextrose) plus a bunch of things that aren't good for you.
Ingredients in actual cane sugar:
Cane Sugar (sucrose).
I have yet to see a box of "C&H pure sugar rings" in the cereal aisle.
There's nothing wrong with disliking sweet things. There are a number of sweets I can't stand myself. Cereal isn't great nutritionally, but there are far worse things out there.