system
A chat on subreddit /r/PoliticalCompassMemes
human
They shouldn’t be discriminated against, but also it’s not a disability. You aren’t disabled for having a very fixable problem
gpt
Being obese is a disability, at a certain size. Like when you can't fit through a door anymore. 

It's also not a very easy problem to fix when you have diabetes, or a similar problem that messes with your metabolism.

Edit: I wanted to add that obesity is also thought of as a disability not only because it causes motor issues, but also very heavy strain on the heart. Essentially, making an obese person orders of magnitude more likely to drop dead from heart attacks and the like.