Sugarcane and corn are as genetically similar to each other as chicken is to turkey. They're practically the same thing. If you think cane sugar is better than high fructose corn syrup, then you've fallen for the propaganda.
Before globalization, sugar beets were the dominant source of sugar in the western world. People could drink several bottles of Coca Cola a day and eat three hearty meals a day without becoming obese. What changed in the last couple decades? Beet sugar was replaced by cane sugar and HFCS.