Obesity isn’t just being chubby. It’s a morbid condition detrimental to joints, spine, liver, heart and other comorbidities. It places a strain both on healthcare systems and on accommodation efforts. It’s in everyone’s interest, including the patient’s, to remedy that issue and help them attain a less unhealthy weight.

You are right that the condition alone doesn’t diminish the worth of the afflicted as people. What makes the financial obesity of our comparison so despicable is that it stems from ravenous gluttony at the expense of others. I could see a point that this qualifier should be spelled out, even though I think it’s implicity clear to most participants from the general context of the discussion.

But obesity as a condition is neither normal nor good, neither for the patient nor for the system obliged to accommodate them.