Those who say just "personal responsibility" don't want the situation to improve. They know overweight people won't take personal responsibility without an external force. They are fine with them burdening our healthcare, but as soon as you suggest the government take an active role in addressing the crisis, they complain about big government.What I would do is make zoning laws less car dependent, better regulate the shit companies can put in our food and improve physical education and nutritional education. I'm not suggesting rebuilding cities that are still in manageable condition, but better designing what hasn't been built yet or NEEDS to be renewed. Nothing will be done. Because, in a time when two thirds of the country is overweight and more than half is obese, merely promoting good eating and exercise from a position of power is deeply unpopular.