The fact it's not working means something's broke.
Counting calories absolutely work for weight loss. I haven't done it and reaped the benefit of it, but ultimately it wasn't sustainable for me.
My main point was that people don't want to talk about the main issue, but rather these details.
The fact that natural hunger/satiation doesn't seem to work anymore certainly counts as a main issue (and you got some off topic replies).
Thinking about "what's broken" though, I have a few hypotheses:
1. We're surrounded by supernormal stimulatants that are hijacking our brain. (While this is possible, most of the worst food was available before the recent spikes in obesity)
2. Economics: calories (in any form) used to be expensive, so only the rich could get fat. The skills required to thrive in a world that doesn't impose calorie restriction at some level are just not widespread.
3. Our internal systems can't function in a world where people get less than 1 hour of vigorous exercise a day (or even a week). It doesn't matter how little you're spending, the body expects you're going need at least, say 1500 calories and for many people that's too many.
4. Something environmental. We're awash in so many new chemicals building up in our environments and bodies, and few have been studied for their long term effects. Maybe there's something in here that's throwing off internal signals or hormones.
The brokenness usually comes from a diet high in overly processed food and refined sugar/starch, often coupled with little or no exercise.
Here's a paper relevant to the diet aspect:
Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain: An Inpatient Randomized Controlled Trial of Ad Libitum Food Intake:
https://www.cell.com/cell-metabolism/pdf/S1550-4131(19)30248...
I believe a good way to un-break things is gaining an awareness of where the calories are coming from, together with a. lot. of moderate exercise.
The above has worked well for me, but it's no quick fix, and wouldn't sell books, tv programmes, or speaking engagements.
'Eat less, move more' is overly simplistic, it's more about how you eat less and how you move more, to help the body's set point to shift back to a healthy level.