Obviously, we cannot force these people to lose weight. I do wish we could prevent them from entering certain establishments, though - such as McDonalds.
I work at McDonalds, and over half of our customers are eithor bordering on, or are, morbidly obese. I often wonder what would happen if someone were to suffer a heart attack in our store - would they blame us for serving them? Thankfully, I do not live in the US, or else I would be concerned about a lawsuit.
I would much prefer these people pay for their own medical treatment. Over here in Australia, those who have Private Health Insurance pay for their own medical treatment out of the payments they make each year - about $100, if memory serves me correctly.
Those on the Public Health Care System do not pay for their medical treatment - the taxpayer does.
Those obese people who are on the Public Health Care System should be made to pay their own health care, in my opinion.
For one, they are at higher risk than 'healthy' people. There is more chance of an obese person suffering a heart attack than a healthy person, for example, due to the massive pressure on the heart. There is an increased risk of the patient dying on the operating table because of their weight, and also a longer recovery period. This doesn't extend to obese people only, though - it extends to smokers, too.
Those people who chose a lifestyle which directly causes harm to their bodies should pay for their own medical treatment. If this were put into action, it might persuade people to adopt a healthier lifestyle.