Not all "fat" people are unhealthy. Not all "skinny" people are healthy. Just like not all smokers die of lung cancer. There are a lot of factors involved. Considering that we have a growing percentage of overweight people, as a society, we need to address it as a problem and work for a solution. I just don't think sterilization is the answer, and neither is risky stomach surgery.
I wish I could find it again, but there was a study by one of the big medical colleges on financial standing and weight problems. It found that the most obese people were the poorer people. It also evaluated the cost of healthy food versus non-healthy food. It showed that the grocery bill of a list of fresh food, proper amounts of fresh fruits and veggies, and healthy protein costs about 50 - 75% more than a list that contained pre-packaged foods that were either frozen or preserved. So, they tried to prove that it costs more to eat healthy. Then add "organic" foods to the mix, and it gets even more expensive.
I shop at Whole Foods, which carries a lot of Organic foods and foods that pass their "healthy" test. I buy as many Organic products as I can, and over 75% of my cart is filled with fresh fruits and veggies. My grocery bill if literally double what it was when I used to buy "quick" type meals and the minimum amount of conventionally grown fruits and veggies.
In our long range plans to market farm on our small parcel of land, we're hoping to grow organic quality foods without the organic label (which is, by the way, a marketing tool like anything else). The problem is, if we spend the money for organic certification, we'll be expected to sell at "competitive" prices (read: vastly inflated). So, our goal is to produce naturally grown foods at prices competitive with mass marketed produce (the way we intend to make a profit is by growing things like tomatoes in the middle of winter, when they fetch the highest price, etc).
Personally, I love healthy foods. Give me a good veggie sandwich on whole grain bread, and I'll choose it over a steak almost any day of the week. But fresh produce doesn't keep as long, necessitating more trips to the grocery store and a higher net cost for even those who CAN afford all organics.
Back to topic, though...I am obese, and am winning the battle against it, but NOT ONE of my five children is obese. We've taught them healthy eating habits from the beginning, and they are very active. My own personal problems stem from the fact that you can't just WISH away 34 years of damage.