Think part of the problem here is people use calories in calories out interchangeably with eat less move more when they most definitely aren't the same thing. That's before you even consider CICO is itself a simplification of EBE.
Are there people who eat too much and / or eat the wrong things. Absolutely there is and that's an ever increasing number of people. But there's also decades, and a multi-billion pound industry, of telling people to 'eat less, move more' which has been a failure on a scale that just wouldn't be accepted for treatment of any other issue.
Even if you believe that is the answer and every single person who is overweight is just lazy and unmotivated then you still come down to the same situation. We've got an ever increasing number of people off work with long term illnesses. Just this morning I read a report that in the current generation of people in their 50s health issues are dominated by obesity related illnesses on an unprecedented scale.
The end result of that will be the number of people not working due to obesity will continue to increase, the cost to the NHS will continue to increase, the number of people requiring NHS treatment and taking up capacity in the system will increase. Why would we decide that is the best route when we could adopt widespread use of a treatment proven to work. Even health insurance companies in the US have realised that its in their best financial interest to cover this type of treatment on insurance rather than have to pick up the bill for all the obesity related conditions.
We're basically saying we want more people to have lifelong health conditions where they will be unable to work, at huge cost to the taxpayer, based on a moral stance. Not sure how that makes sense on any level.
