I'm not saying it's okay for him to waste resources, but they can just stop trying to stop him if they want. They could even legalize euthanasia of they really want to test him. He has access to help according to the article.

With regard to obesity, I don't really understand the difference between killing yourself quickly because of poor health and killing yourself slowly because of poor health. Nobody gets to the point of being immobile because they're doing great, but we still don't forcibly control them.

We temporarily confine intoxicated people and/or escort them home because public intoxication is generally illegal. Alcoholism isn't something I've heard of someone being held for against their will. I've heard of repeat offenders being assigned mandatory rehab, but that's not something you get for being drunk at home or for ending up in the ER with alcohol poisoning.

We don't allow people to do dangerous things that might be a liability issue, but it's completely legal to dive in caves and jump out of planes and climb Everest, even though you could be injured or die. We're not trying to protect people from themselves; we're trying to protect ourselves from their lawsuit.