Many of the really obese people I know do have some contributing medical condition. The ones who just overeat are usually obese by medical standards, but are not the ones you look at and think enormous.
By insurance company standards, if you are not a rail you are obese. My family is extremely large boned (all that German-Scot blood), and my son has to pay a 25% surcharge although I don’t consider him fat.
There might be a bright side to this. Being we’re all obese, that brings us all under the victim umbrella!
And above average.