No I don't think they are bad, I think the health and education system has failed them.
Weight loss is not simply a matter of “eat less and train harder.” The body isn’t a calculator, it’s a hormonal system. Hormones like insulin, leptin, ghrelin and cortisol determine whether energy is stored as fat or burned as fuel.
You can force a calorie deficit through willpower and exercise, but if your hormonal environment promotes fat storage and constant hunger, the body will compensate by slowing metabolism and increasing appetite. That’s why many people regain weight despite intense effort.
Understanding how food timing, food type and stress affect hormones, and working with those signals rather than against them, is far more sustainable than trying to out-exercise biology.
The aim is to become fat-adapted, teaching your body to burn stored fat efficiently instead of constantly relying on incoming food. When that switch happens, weight loss stops feeling like a constant struggle.