This is good to hear but likely isn't true for many products in USA because of some reason or another like a tax on any imported sugar and hence the cheap HFC syrup. I noticed back when I actually drank them that Coke tastes significantly different outside of US because they use sugar and not fructose.
I think that if a majority of overweight people simply heeded your advice here, and did nothing else, they would see a dramatic change in weight and overall health. For me, giving up sugar was easy but i can understand why it would be very difficult for others.