It's a thing. Don't buy the food, don't eat the food.
Only yesterday I watched a couple waddle out of a bakery with a large bag filled with cakes, buns and pastries. They were under 40 years old and already unable to walk properly.
"Only yesterday, I saw a guy with lung cancer smoke. If everyone stopped smoking, there would be no more cancer, right?" Isn't it that simple? Additionally, if everyone trained as hard as Lebron James, they'd all be able to dunk like him, right?
Your anecdote is a moronic simplification of a complex topic you clearly know nothing about. You're welcome to judge them like an asshole, but by the same logic, I have the right to call you a clueless asshole. Do you feel like a big man for shitting on the fatties?
OK, so you saw a is couple who are a bunch of lardasses with self-control issues. They're fat from reckless behavior. These drugs are not for them. Drugs are for people who eat responsibly and exercise and do everything right, but aren't at a healthy weight. They're never Plan A. Every fat person of a certain age knows they need to improve and nearly everyone tries to once their weight goes from a theoretical concern and aesthetic issue to something tangible that shows actual symptoms and a threat to your life. Some turn it around, many (if not most) most who started off as fat kids don't.
What assholes like you fail to understand is that for some, they act like a jackass and they get fat. They stop acting reckless and they slim down. Most of them started off as normal-weight kids. But a rather large percentage of us were fat kids who ate even less than you did. Some bodies are eager to store every surplus calorie as fat, most aren't. Some people have reliable hunger signaling, some don't.
There's a lot of genetic variation and biology is not deterministic. What works for you, may not for others.
I'll wager I'm leaner and fitter than you, but it's a fucking struggle and drugs are helpful. I've lived off salads and protein supplement for the last 10 years, gotten 30 minutes of cardio daily, typically cycling many miles. I've LONG stopped eating sweets and drinking soda and eating bread, etc for 20 years. However, until I was on drugs, my bodyfat was 30%. You can't tell because I workout enough to hide it and have 17" arms. Since tirzepatide, I've probably gotten it down to 25%. I look pretty good, but I workout and eat like a psycho and have a dadbod.
What drugs taught me is that my hunger signals are worthless. They go off too early, so I have to suppress them until I am light headed...if I get to the point where I nearly passout a few times a day and with drugs, don't get a spike in hunger and eating afterwards, only then can I slowly lose weight...and for starving myself to the point where I can't even focus my eyes or safely walk, I lose less than a pound a week....while living off salad, protein, few carbs, no sweets, etc...food has been fuel for over a decade for me, no eating out, no joy at meals, etc. Are those fat fucks like me? I am confident they're not, but again, the drugs are for people like me, not them
Metabolism is one of the most complex functions of the body and we don't know much about it. We're constantly learning new things. It involves a lot of complex signaling with peptides that are quite fragile and difficult to study. Once you identify them, they have to be injected because your stomach will ingest them, making testing all the harder. We have a lot to learn.
But until then, be a smug asshole if you want...I'll be sure to point out that you're a smug, clueless asshole.