Ok but if they acknowledge it's an addiction, that's still a medical issue requiring treatment. Maybe that means going to food addiction anonymous meetings but if GLP-1 is like methadone for food, why not do it?
No, they don't acknowledge it. To them their body is different and being large is just how it is.
If you are in a place where you truly can't control your habits then of course GLP-1s are an amazing tool. However, if you don't adjust your life-style you will relapse when you get off, so the real solution is to adjust your life style. Also, there are benefits to exercise that aren't connected to losing weight. In my experience, 100% of the people I know on GLP-1 drugs are not exercising. I'm sure I'll get 1000 responses of people who do, but in my experience they don't. So you put yourself in a position where you're not addressing the actual problem, you are on a drug for life, and you aren't being healthy in other capacities. Are there times where these drugs make sense? Yes. Of course. Spare me the lecture. Everyone I know on these drugs are middle class people who absolutely could be healthy but don't want to put in any work.
GLP-1 will prevent you from eating so much, but it won't make you eat healthy. You can and likely will still fill yourself up on junk, and will deal with the risks associated with that. Albeit it won't be enough to make you fat, but that's only one slice of health.
Learning to control your diet solves both problems.
I'd also argue there's a lot of value in learning to not be dependent on medication to control your behavior, because it's not available in most situations.
You can't take an exercise pill.
You can't take a career success pill.
You can't take a "hard, but necessary conversation with my partner" pill.
Those all require you to consistently do things you at times don't want to do, just like avoiding junk food.