People don't eat out of some logical conclusion they reached that they need to eat a certain amount of calories
People eat because they're hungry, people eat too much because the food that is available to them and that is advertised to them isn't as filling (and a lot of the time due to bad habits that form, emotional eating, etc)
Someone being obese is not an issue of them knowing or not knowing that eating a surplus of calories is what increases weight, so this fact is irrelevant, everyone knows eating more makes you gain weight.
So, a drug that makes you eat less is something that magically helps you lose weights, because it solves something lower on the chain (being hungry), going even lower to the source would be eating better food, fixing bad habits and becoming healthier in other ways, but those are difficult non-magical solutions, taking a pill or an injection is much more of a magical solution.
Those people miss the point
People don't eat out of some logical conclusion they reached that they need to eat a certain amount of calories
People eat because they're hungry, people eat too much because the food that is available to them and that is advertised to them isn't as filling (and a lot of the time due to bad habits that form, emotional eating, etc)
Someone being obese is not an issue of them knowing or not knowing that eating a surplus of calories is what increases weight, so this fact is irrelevant, everyone knows eating more makes you gain weight.
So, a drug that makes you eat less is something that magically helps you lose weights, because it solves something lower on the chain (being hungry), going even lower to the source would be eating better food, fixing bad habits and becoming healthier in other ways, but those are difficult non-magical solutions, taking a pill or an injection is much more of a magical solution.