I suppose that depends on how you define "high"? Fruit is loaded with fructose. Many popular and healthy vegetables contain glucose. Mannose can be found in legumes and vegetables, and galactose can also be found in fruits, vegetables and herbs. Does your "natural" diet prevent you from eating ketchup or from putting mayo on your sandwich? Do you deny yourself beer, yogurt, hot dogs, cake, pastries, chocolate and ice cream? Sounds pretty damned boring to me, and for absolutely no good reason.
HFCS imparts well over ten times the normal amount of free simple sugars to anything it’s added to.
Did you get that nonsense from the same source that told you hydroxymethylfurfural is carcinogenic when found in parts per billion? You need to improve your sources of information. HFCS is a replacement for sucrose. That's how it is used, and it has replaced sugar on a nearly one-for-one basis for a long time.
The precursor to HFCS, all-glucose corn syrup, is itself produced by hydrolyzing corn starch with alpha-amylase (produced from Bacillus subtilis instead of the human pancreas) and HCl, an unnatural process even inside the body. The next step in converting to HFCS is to add enzymes that convert some of the glucose to fructose
Sounds scary. But it isn't. HFCS is about as close to honey as you can get. Are you trying to tell us that honey is deleterious to our health? Sure. Yet your body cannot tell the difference between glucose and fructose from HFCS and glucose and fructose from sucrose. It handles it in the same manner, and like all sugars, it ends up at the same level of the Krebs Cycle as 3x2 carbon fragments. The horror.
If this is meant to be a defense of crony capitalism’s favorite sweetener, then consider that the Communist Manifesto is the chief historical advocate of “combination of agriculture with manufacturing industries”
What the hell....? How would the food manufacturing industry exist without agriculture? Working together to produce products that people want and use is communist? Good grief, are you confused. HFCS became popular because the politicians make sucrose more expensive for American industry than the rest of the world. HFCS also has properties that beverage manufacturers, baking and the processed food industries find appealing. It isn't some big conspiracy to control your precious bodily fluids. The only people who see problems with this food ingredient are those who don't understand basic human nutrition.