Earlier quoted context omitted.
And yet for each of us, where we're at right now, we lose weight by eating less and exercising more that we are right now . Its a wonderfully self-calibrating system.
Nobody likes that answer. Personal accountability sucks.
That does NOT mean we aren't all personally responsible. It means that you should consider having compassion and less contempt for people who fail where you succeed.
Are there cases of pure gluttony and laziness leading to obesity? Damn straight there are, and I'm not arguing otherwise. But whether you believe me or not there are real challenges that _some_ fat people face that you (presumably) and I just don't have to deal with.
Think of it this way, if someone is born with only one leg. They still have all the same personal responsibility you and I have to live their life as an adult. But both of us will understand if they struggle with certain things we're able to accomplish with ease. You wouldn't dream of saying that person lacks personal accountability because he struggles with walking.
So why do you presume to know FOR SURE that everyone who is fat got that way because of a failing of personal accountability? Perhaps they were just born without a leg... so to speak...
I hope you'll reconsider your position. At least to admit there is a possibility that other people have unseen handicaps that you just don't have to deal with.