It was only within the last year or so that I discovered that high fructose corn syrup plays havoc with my system. I usually avoid it, but yesterday was my birthday, so I had ice cream and cake last night, even though a little voice was telling me I would be sorry.
Result: Restless night. Two hours of sleep followed by 5 hours of wakefulness. Followed by GI distress.
HFCS is horrible stuff. But, as you said, we need to exercise common sense and personal responsibility.
And if people stop buying products that contain HFCS, market forces will make that junk disappear,
Anything you buy that is ready-to-eat usually has HFCS in it.