Obesity is literally a self control issue.
You sound like you don't believe in ADHD “just finish what you started, have some impulse control!“, or autism "read the room, don't be so literal and stop getting distracted by noise and light, just ignore it".
It night be plausible that most people can just avoid the first cigarette or the first spliff or the first anything, but no one can avoid food, and some people's biology, their hormonal balance, their brain chemistry, mental health, shit, just their metabolic rate can make them have a very, very different order of magnitude of problems with food.
So it's easy for you to have self control around food and balance your calorie intake with exercise? Great, good for you, but stop acting all morally superior for not having problems in your life.
Get lost with that judgemental "it's simple" shit and try to learn a bit of self control yourself over what kind of nasty judgementalism you're spouting online without thinking about other people.
Congratulations on ignoring literally everything I said and arguing with some fictitious person who is "body positive" about obesity or who doesn't think it's a problem. I mean, I've come across straw man arguments before, but this one takes the biscuit.
You think your hate and contempt can fix other people, but you're very, very, very wrong. I wouldn't be surprised if you shout at homeless people or at last rant about them for half an hour behind their backs.
Also congrats on completely, utterly and comprehensively falling the self control challenge I set you.
Turns out your self control in some things is at absolute zero.
Still really proud of yourself? I bet you really are, because you're not very introspective so far today.