I was wondering how you could get such a high impact overall. But it seems one in 6 households are on GLP-1 drugs in the US.
In my friend circle in Germany I don't even know one single person on this stuff.
It's insane to me that so many people need these to get off the processed foods killing them in the US.
This is not to say you are wrong. The food supply in the US is not healthy. The bad news is that the same greed that destroyed our food will find ways to get around the ways GLP-1s work.
It's not genetic, this is just your family refusing to take responsibility for their own eating habits. The proof is people who have bariatric surgery so that they can't eat as much, and people on GLP 1 drugs so they aren't hungry. Both groups lose weight. It's not your genes, it's the fact that you put too much food in your mouth (and probably the wrong kind of food). As an overeater myself, knowing this does not help reduce intake... People have to make changes and stop blaming genetics, or thyroid (there are drugs for that too) or whatever it is they think is beyond their control.
I was diagnosed with type 2 diabetes five years ago. I radically changed my diet to a hard keto diet with a cap of 50g of net carbohydrate per day (carbs - fiber = net carbs). My caloric intake quadrupled due to fats being high calorie. My weight dropped by 48 pounds. In every measurement, I'm healthier despite being older. My diet is also expensive and difficult:
Most foods in the us are high in carbohydrate. Cereals, added sugars, fake sugar free (sugar alcohol instead of sugar), and foods that have lots of integrated carbs... sandwiches, tortillas, etc. There's a huge preference for bad foods baked into the culture. It's hard to eat well. So culture is as much of a problem as any other factor.