I think the point you're getting at is - is it voluntary or not? Does the cure = making different life decisions?

For a lot of people, I would say yes, and I think it's problematic for those people to act like obesity is happening TO them.

That being said, there are other chronic conditions that makes maintaining a healthy weight incredibly difficult... Sometimes life is just harder in some ways for some people. It's still an individual's responsibility to make healthy decisions - both physically and emotionally/mentally. Sometimes maintaining reasonable/sustainable overall health might mean they don't kill themselves trying to avoid being overweight at all costs. I don't think that's the norm, though.