To bring that around a bit more, if the .gov stopped subsidizing things like corn growing then foods with HFCS wouldn't be as cheap to buy. Move those subsidies to fresh fruits or veggies and it would change what people eat because it would change what people could afford.
I disagree (not with hating the corn-pushers), but in that I don't think that would solve the obesity problem. I think maybe educating people people would help. Granted I agree that there is a group of people who eat unhealthy because they can't afford (or don't think they can afford) to eat better. I don't think that is what's causing the obesity explosion though.
Water is free. Why do I see fat people sucking on on soda and Monster Energy Drink all day? Are they too broke to afford water?
It could be a "comfort food" type issue. If you're stressed out and poor, eating crap makes you feel better. Like the Mountain Dew thing in Appalachia.
But I know there HAS to be huge (no pun intended) obesity explosion among the middle class. I see it every day. Do they not know what makes them fat? Do they not care? Is it a result of modern society, work a stressful office job and then come home and pig out because it makes you feel better, never exercising because you're always busy with work and the kids? Is obesity just a symptom of the coping mechanisms we use to deal with our mind-numbing lives? I know for a fact I eat worse when I'm stressed out or busy.