If you can be disciplined about taking a drug you can about food. How do you explain correlations in obesity across cultures? Genetic superiority? Again, imho just making excuses for laziness. The same logic you’re applying here also applies to even taking the drug and picking up refills from the mail…
Also look at obesity rates across time within the same country. It’s clearly not an issue of discipline, it’s an issue of what’s being eaten.
Why in the world do you think that taking a once a week injection requires even remotely similar levels of discipline to dealing with daily hunger and food noise? There's like, a dozen orders of magnitude in between. This is a silly argument.
> How do you explain correlations in obesity across cultures? Genetic superiority?
Every developed nation in the world except Japan has been seeing obesity and overweight rates rising at significant rates, including countries that have fairly similar cultures, such as Korea. You also see people move to America and stay in relatively isolated pockets of their culture and still gain weight.
So no. It's a matter of access to hyper palatable calorie dense food. The more of it around, the more likely people are to get fat. The fatter you get, the more of a feedback loop you end up in for a wide variety of known and relatively well understood mechanisms. GLP-1s help short circuit that feedback loop.