Well I’m sure once you’ve seen enough type II diabetics with chronic sores on their feet, bone infections, amputations, diabetic retinopathy, it can be hard not to warn people of the consequences of obesity.
Cursing at me and telling me I will literally die in 10 years (I survived the guy by at least 10 years by now) and assuming the shock from that will get lazy me off the couch or something just put me into an extremely anxious state loop that didn't help me whatsoever. I didn't need to be told to eat less, I needed any coping mechanism that wasn't overeating. And I needed coping mechanisms a lot back then, the anxiety just contributed to that. I went through life for almost a decade just accepting my imminent death because I couldn't fix it.
People almost universally know that severe obesity is bad for them. You don't need to tell them.
There are many reasons people are obese. For me it was mostly a psychological issue. Doctors need better training in this regard, because telling someone to stop being lazy and eat well will almost never lead to them to improvement. Dieting, in the long term, it almost universally a failure. It just doesn't work. It doesn't address the right issues.
Yet, for doctors and those unaffected it seems like such a trivial thing that any deviation seems self-inflicted. They must be doing it willingly. They must be shamed. But it is never is that simple.
It is an attitude they constantly carry into conversations with patients. They need to take that attitude and throw it into the trash, because all it does is make the patient feel horrible about the lack of control they have over their condition that they supposedly should have, according to their doctor.