Just like alcoholism, or any kind of other addictions.
I've struggled with alcohol abuse, and once you come to the realization that you're abusing it, the fix FOR ME was relatively simple: I stopped (under medical supervision) drinking, or to be more precise: I stopped starting to drink. I have no problems not drinking, I have a problem that when I start I cannot stop.
I have the same issue with food. Not eating is a lot easier than stopping to eat. But I cannot completely stop eating.
Yet with alcohol people are like: hey, good for you.
With my weight issues people are like: dude, just eat less, or exercise more.
(I stopped sharing the food story with people).
"Just Eat Less" is roughly the way to lose weight, but the problem is not that fat people are so unbelievably stupid that they didn't know this. I am sure for some people it really is that simple. Not us.
My weight has been a bit of a rollercoaster. I've never been terribly thin, but I've been "not technically obese" from time to time. I'm currently back on the downswing, but God, what a pain in the ass. It feels like gaining weight is incredibly easy and losing it is incredibly hard (and I do believe this is validated by the science, because you wind up with more fat cells when you first gain weight, which I guess is both relieving and terrifying.)
No matter how many attempts it takes to fix my body, I'm obviously going to just keep trying, because obesity is horrible for you in so many ways. It saps your energy, it's carcinogenic, it increases your blood pressure and risk of heart disease, but it feels like one of those struggles that is never-ending. I've improved my diet numerous times but it never feels like it's quite enough.
I feel like there is more to it.
Obviously, I sympathize with you, and I noticed that when I switch from a bulking cycle to a cutting cycle, it is a bit difficult to adjust for the first couple of weeks as well.
But by god, I truly am struggling to switch the other way around, and it takes me months to adjust to the bulking cycle, even with the help of stuff like weed. And when I don’t work out aggresively and don’t keep track of my cycle, it feels just natural for me to default to eating way less, as opposed to the other way around.
To be clear, this isn’t meant to be a dig at your take. All I mean is that, I feel like the whole issue is a bit more complex.