But ultimately you can’t just blame people. There is literally an entire industry trying to sell you cheap carbs and fat. Down to the sound a bag of chips makes when you open it (this is not a joke).
So on one hand you have evolution, your body still being stuck in the past where food was scarce. On the other hand you have too much food and it’s highly engineered to be addicting on purpose.
It’s no surprise most people are going to lose that challenge.