>This idea that Americans are genetically pre-ordained to be fat seems like fanciful thinking.

The idea that it being genetic or not should matter is odd? Who cares why people are fat? They inarguably are fat and will by all available evidence be skinnier and healthier on a glp drug.

I fail to see the need for additional analysis or consideration?

Digging into the root cause or petitioning to tweak the food supply to reduce HFCS are admirable, but entirely orthogonal to the questions: "will taking ozempic et al make an overweight person's life better?" and "will making ozempic et al widely available improve America as a whole?"