Remember when this exact same argument was made to justify attacks on tobacco? Remember how those lawsuits and taxes were supposed to reduce health care costs?
Looks to me like it didn't accomplish a thing -- still the same argument being made. Only now it's food. The problem is that the food puritans look down their noses at overweight people and vilify them for making bad choices. It's not that simple -- food, unlike tobacco, is needed to survive. And not everybody is genetically alike. I work out hard 5 days a week and am still am considered "overweight." And yet I know other people who don't work out and eat everything in sight -- and they're still skinny.
Clydesdales and thoroughbreds are both the same species. And yet the thoroughbreds of the world are looking down their noses at the clydesdales and saying if the clydesdales would just eat better and exercise more, they could run the Preakness, too. We accept differing body styles and sizes in everything from aardvarks to zebras, and yet we expect humanity to conform to a universal ideal that transcends genetic barriers. Go figure.
This is a slippery, slippery slope. During the tobacco debate, people argued that it would set a precedent that would one day be applied to food. People scoffed and said it'd never happen. Now here we are. What's next? Old people?