User, your post regarding gluttony/lack of self control is offensive and also wrong.
There are a lot of factors both intrinsic and extrinsic which control appetite/hunger.
As someone (claiming to be) slender and and in control of your appetite, you are disgusted at those who are not.
Your "superiority" might have nothing at all to do with your ability to control your appetite and everything to do with the fact that, actually your appetite is genetically set to a level that matches the food environment you have grown up in.
Genetics + our modern highly processed, hyper palatable food environment means many people struggle hugely to control what they eat... you are not superior to those people but you sure as hell are luckier so fuck off with your disgust and judgement.
I was unsurprised when I had genetic testing, to find I had double copies of all the genes associated with weight gain and appetite control (FTO, leptin resistance etc). Before I radically changed diet I had a bmi of 46. I was hungry all the time. However, I'd say my genes (fairly common genes by the way), are NOT to blame, it's the utter shite food we are surrounded by 24/7. Most people who are super fat these days wouldn't be fat if they'd been born 100years ago because they'd have been eating real food and plenty of natural fats, not endless amounts of insulin spiking processed carbs and sugar.
Op, I understand why you are considering the op, I thought about it too but you are essentially mutilating a normal body in ways that can cause serious long term harm. I think you should try other options first.
What worked for me (6stones off and kept off with only a few blips, for 11 years now) was a low carb, grain free diet. Honestly, if you can get through the first week or so, it will change your life. Get off that insulin rollercoaster and it becomes so much easier to control what you are eating and how much. I'd highly recommend marksdailyapple and dietdoctor (LCHF) blogs as very good starting points if you decide to give low carb eating a go.