This type of news piece always provokes discussion because as a culture, we naturally deride overweight people.
Our society has always been 'fattist' - although this has only been a concept seen since the last war, because prior to that, no-one had enough food to eat to be overweight. Now with the advent of sedentary lifestyles and junk food, the levels of obesity have soared, and with them, the inherent distrust and derision of overweight people.
I think that taking the moral high ground over smokers, drinkers, drug addicts and obsese people can lead us into being deeply cynical and uncaring people with an unhealthy attitude of superiority to people who often have issues that they did not create and with which they are unable to cope.
So the short answer is - no, I do not object to tax-payers' money being used to treat this man - and to deride or begrudge him a chance to life because of a socail attitude to obesity is not a concept to which I would willingly subscribe.