Ok then... why is there a culture of unhealthy eating?
It's got nothing to do with conservative commentators, they're just responding to a sentiment that's already there. That's all they ever do.
It's not even REALLY a liberal vs conservative issue if you look at the numbers.
It's due to how eating healthy is preceived, due to well, how people who want people to eat health preceive it.
1) First off, starting with school lunches. That's a big mistake that reinforces bad eating behaviors. Why? Your essentially challenging peoples parenting. Hence the huge backlash everywhere. Not to mention, you aren't actually doing the kids any good. Best case scenario is they eat one good meal and 10 unhealthy ones. The goal should be to convince people to eat healthier NOT. The heavy handed approach tends to slow progress. Instead of promoting a healthy culture of eating what you get is laws that are basically federally mandating a level for people to be unhealthy at, and essentially making that the default level people want to be at because the laws don't actually change peoples opinions, but instead cost them money or force them to do stuff.
2) Eating healthy is perceived as "white". Seriously. One of the reasons for obesity increasing is that there are less white people as a percentage and healthy eating is seen as white... there is larger obesity rates among minorities.
I know your first thought... "Minorties are poorer, therefore they are fatter!"
However, the huge mindfuck here is that if your black or hispanic, obesity positivly correlates with wealth. In other words... the richer you are.... The more likely you are to be obese.
http://www.cdc.gov/obesity/data/adult.html
Why is healthy eating so "White."
Just look at your average healthy eating spokesman. Also, look at the foods they suggest. What people are used to eating is cultural. It's fairly easy to convince people to swap out unhealthy food for healthy alternatives of the same food.
It's not so easy to convicne people to swap out unhealthy foods for completely foreign foods.
Outside that, you've got the whole body myth and bueaty myth thing working agaisnt you.
Government intervention surely doesn't help either as making it seem like a white initative, even when the President is black.
3) "The better is the enemy of the good."
Most peple who expouse healthy eating more or less create a false dichotomy that essentially presents the argument that if you aren't eating organic botique foods it doesn't count. This article actually does that, by implicitly suggesting that if you aren't shopping at whole foods, your eating crap. If you take your kids to McDonalds once, you may as well be committing child abuse.
When it's perfectly possible to eat healthy for cheap, out of a regular supermarket. Cheaper then eating crap actually. Due to this generally being the sentiment of healthy eating it's no wonder that poor people only look at eating healthy as a "rich" thing only rich people can afford. Nobody focuses on healthy eating, or for that matter, an unhealathy/healthy eating combination plan that focuses on moderation of the unhealthy.
4) "More flies with honey."
A lot of people are well... dicks about healthy eating. Jamie Oliver was partially run out because, being TV, he made all kinds of grandiose statements that true or not really isn't going to get public sentiment behind you.
Someone coming out of nowhere saying "Your kids will die thanks to your inept parenting!" isn't the best lead in.... even if that is the case. Let alone he picked the fatest city in the country. You think people might be defensive there?
in culture wars, you start on the outside and move in... you don't go to the heart of the culutre issue you want to change and try and change it there. You take out the corners and slowly shift opinion away weaking "strongholds."
5) Cultural diets. Much like it being "white" above. Southern people are fat, because they eat southern foods. Which culturally have always been bad for you.
6) Unhealthy food tastes better. It just does. It doesn't have anything to do with "learned helplessness." At the end of the day, for most people, junk food beats pretty much anything you can do with healthy food.
Until people value health over enjoyment, this kind of problem will persisit.