Saying sugar is healthier than HFCS is sort of like saying morphine is healthier than heroin. It may technically be true, but both will kill you eventually. That said, I agree that if the cost of sugar and HFCS were higher, it would no longer be cost effective to put it in bread. I think everyone can agree that HFCS and sugar probably shouldn't be in bread.
I'm not a biologist, related from Lustig's video, probably incorrectly:
fructose + glucose = sucrose. Body needs glucose. Fructose goes straight to liver, metabolized like alcohol, a bunch of bad stuff happens. Reason fruits are better than fruit juice is the fiber blocks the fructose from being metabolized, letting the needed glucose through.
Eating straight refined sugar is probably almost as bad as HFCS. But other sources of sugar (in moderation) are proably fine.
FWIW, I add fruit into my morning kale smoothie, and it tastes delicious.