alt Hacker NewsCause and effect is backward. The locations indicate where people are buying it. And cheap doesn't really add up either because if somebody wants the cheapest possible calories they would be buying rice, flour/pasta, potato...
I don't know why the problem is shied away from. It is because people are addicted to fast food and to their sedentary lifestyles. It's not the price or availability of good food, not the first order effect anyway.
You'll never be able to force "whole foods" sellers into unprofitable places and if you did by some miracle, you'll never be able to force people to buy it no matter how much money you gave them. Vegetables and grains and basics could be free and many obese food addicts will go buy a burger from a drive thru.
Cooking good food takes time. I can slap some pre-made burgers in a pan, throw some buns in a toaster and have a "meal" in 10 minutes. I can stop by fast food on the way and have the same meal (at only slightly more cost) in 5 minutes.
I typically spend more than an hour in the kitchen cooking every day, and then there is half an hour clean up after my family is done eating. I eat much better and healthier food, but it takes time. (If I'm having noodles I'm making them from scratch myself - I could save some time buy less of things like that and the cost wouldn't be much different if any - but even then the whole meal takes time).