Bottom line is that we eat TOO MUCH white sugar and HFCS. Neither table sugar nor HFCS would be much of an issue if we ate them in amounts that resemble their natural availability in whole foods, which is very little. Instead, we put sugar/HFCS in EVERYTHING and we consume MASSIVE quantities of both, far beyond any amount that we could have evolved to deal with in such a short time. All of us should strive to reduce the amount of sugar we consume.
I think you nailed it with that.
HFCS may be slightly more destructive than cane sugar but if we back off all forms of sugar we will be better off than just focusing on HFCS.
I don't do the soda thing. Sugar being just one of their sore points. Phosphoric and citric acids, artificial coloring and flavoring, caffeine, BPA from plastic bottles, and the exorbitant costs are all negatives. I stick to water, coffee, and tea. Cheap and effective.