I'd second this opinion – weight can be lost so easily by dropping the majority of carbs. By that I mean base one's nutrition on meat / fish / eggs / vegetables / fruit, with no pasta, no bread, no sweets, no cake, no chips/crisps, no biscuits / cookies etc (and no booze too, or at least keeping it very minimal or sporadic).

If you do 1000+ calories a day of exercise above your basic metabolic rate / consumption, you will lose 1kg/2lb per week. I'm doing this at the moment (and then will be continuing beyond) and it really does work. I do, however, have the luxury of spending 3-5 hours a day in the gym & fitness classes and swimming pool, and cycle there and back. My Apple Watch is amazing at tracking the calories burned in all these exercises, so I know that I'm burning 3500 - 4800 calories a day from exercise. It's trivial to then only eat around 2000-2500 calories a day. This can barely even be classified as a diet, just healthy choices.

The availability of cheap calories and easy carbs everywhere really is the peril of the western diet. Eating vegetables and protein is a little strange at first but the weight will drop off without having to feel hungry. Hence I'll be joining you in the blasphemy, but this really is a solution to excess weight and it's simple maths that cannot be cheated by the body – unless one has some kind of extreme medical condition, the body simply will not stay heavy while running a deficit and a high protein and low "lazy" carb diet. And I'm saying this as someone who has a decent amount invested in both Novo Nordisk and Eli Lily stocks...

Yet it seems that now these drugs exist, it's easier and quicker to take them as a fast track, because if you're 50kg / 100lb overweight, then to say to someone "you need to exercise quite a lot every day, while not eating cheap carbs, for a whole year and then continue beyond" it simply seems too difficult and hard.