You are showing your lack of knowledge of chemistry to extent of showing that you are a repeat customer for someone's Kool-Aid.
The usual argument against HFCS is that the fructose and glucose are separate rather than as-in-sucrose ("real sugar") joined.
A weaker argument is that HFCS is 55% fructose while "reral sugar" is
50% fructose.
Then how are mammals supposed to survive their infancy? Humans are mammals.