Extremely heavy people are extremely heavy precisely because of what they do. When they liberated the concentration camps at the end of WWII, you didn't see any fat people.
I think ignorance accounts for most obesity. There isn't any way that you can eat a lot of fast food or junk food and remain healthy. Fat people are people who have developed the habit of eating garbage. Most of them then exacerbate that problem by avoiding any physical activity. And, then there are a lot of folks who reinforce those bad habits by pretending that obesity is some kind of a modern expression of human liberty rather than just ignorance and sloth.
Typically, obese people are ignorant people. Most of them wouldn't do that to themselves if they knew more about their alternatives. They shouldn't be encouraged to poison themselves.
Your ignorance is stunning. So fat people are ignorant and want to be fat? Really?
I guess ignorant jackasses such as yourself want to be ignorant jackasses?
The problem with ignorance like yours is that it replicates for no damn' good reason. You fail to think beyond your nose to see that there are all kinds of reasons that people are overweight/fat that have NOTHING to do with eating and more to do with metabolic disorders/digestive system disorders/thyroid issues, medications, cognitive heart disease and other things that can cause one to gain weight completely independent of how much or little someone eats.
But you go right on ahead being a stupid jackass on display.