I also hope we can agree that not everyone attains meaningful weight loss with just diet and exercise. The human body is incredibly complex, with a spectrum of natural compositions, metabolisms, etc. Your post dismissing these nuances risks being interpreted as “thin privilege” (my wife is a Dietitian and taught me the concept).
For what it’s worth, I’m against treating drugs like this as a first line of defense against obesity; it should be seen as the last step before bariatric surgery, and only used under the direction of a competent and ethical health professional.
This is easier for some people but not a solution for the general population.
Similarly, eating less is easier for some people while others are genetically or psychologically predisposed to eating more than they need.
Regardless, I am very happy to see that there are effective weight-loss treatments that will be available soon, because losing weight is incredibly hard, and it's been shown definitively at this point that something is causing most Americans to be fat (not just Americans anymore either), it negatively impacts their lives, and for one reason or another they are unable to lose the weight without help.
The fact that these drugs exist and work demonstrates the hormonal link that decades of research has shown is there.
Also, the prices of healthy food is much higher than the prices of unhealthy food thanks to subsidies and scale. But that's secondary to the fact that many people actually can't just "eat less" the way others can.
Let me give you an example of something that humans really can't do. "Humans can't breathe unassisted underwater". See the difference?
You could read about catabolism and metabolic suppression, or lupus, or lipedema, or just carry on, but please, don't be mean to people in real life.