High-Fructose Corn Syrup - the Controversy

Here are the negative things I've heard about High-Fructose Corn Syrup. You can tell me if you think they're true or not:1) Fructose must be processed by the liver. Small amounts of fructose are fine, but too much can toxify the liver, cause insulin levels to be elevated for longer after intake which leads to weight gain, and increase risk of diabetes.2) It is highly processed which presents opportunities for industrial or biological contaminants to get into it. Studies found that half of HFCS products tested contained traces of mercury.3) The corn from which it originates was likely GMO and sprayed with pesticides and industrial fertilizers.