I eat a lot of (plain) yogurt. But my kids often eat sweetened yogurt, which I've suspected is not-at-all-healthy. So I went to check the ingredients of several sweetened brands. I could be wrong but I don't see any of those you're concerned about explicitly mentioned. I do see "fructose" which seems like it could be just about as bad as HFCS? Or maybe the terms you use are generic and there's some specific ingredients that qualify? Or did I just get lucky with these examples I picked?
Examples:
Yoplait GoGurt Protein Berry Yogurt Tubes contains: Grade A Reduced Fat Milk, Ultrafiltered Skim Milk, Sugar, Contains 1% or Less of: Kosher Gelatin, Modified Food Starch, Fruit and Vegetable Juice (for Color), Tricalcium Phosphate, Potassium Sorbate Added to Maintain Freshness, Natural Flavor, Carrageenan, Yogurt Cultures (L. Bulgaricus, S. Thermophilus), Vitamin A Acetate, Vitamin D3.
Danimals Smoothie Strawberry Explosion And Mixed Berry Dairy contains: Cultured Grade A Low Fat Milk, Water, Cane Sugar, Modified Food Starch, Contains Less Than 1% Of Milk Minerals, Natural Flavors, Fruit & Vegetable Juice (For Color), Lemon Juice Concentrate, Vitamin D3, Active Yogurt Cultures S. Thermophilus & L. Bulgaricus.
Agave syrup is 4:1. Apples and pears are around 2:1.
Moreover, high fructose corn syrup is a bit of a misnomer. Most HFCS used in food are 42% fructose, 58% glucose. The ones used in soda are typically 55:45.
That makes even the latter's ratio lower than say, watermelon, papaya, pears, apples, mango, blackberries, etc.
But yes, I'd rather have a classification that clearly separates Coke and Cheez Doodles from actual foods. There are some multi-billion dollar lobbies to prevent that happening, though.