People are different. Using your own achievements as evidence of other’s failings isn’t useful, we are all different. I can fast for 23 hours a day, 365 days a year (omad) with ease, not because I have more willpower than my fat friends, but because I’m different. My fat friends are objectively stronger and more resilient than me in almost every aspect of life, yet by your measure, because hunger doesn’t bother me, I have more willpower than them? Willpower isn’t measured on outcomes.