Disease - Infection by a pathogen or the degeneration of an organ or system

Simple.

There is nothing to debate "What exactly is disease?" It's how words work. You use them for the meaning or definition you have attached them too. When you break this rule, words cease to work. You end up asking "What does x word mean?" The inability of medics to clearly define a term as central to their practise as disease is not simply a philosophical back and forth it is a genuine crisis.

One which should lead to an immediate reversal of the conditions that created it, which as far as I can tell is the application of said term to that which it does not define.

As for 'obesity'. The meaning of that term is in the mind of the beholden. It could pass for an opinion, but it is not a fact,

The Council on Scientific Affairs (CSA) previously addressed the issue. Based on its interpretations of definitions of disease in common use, the Council argued that it was premature to classify obesity as a disease, citing the lack of characteristic signs or symptoms due to obesity, as well as evidence of any true causal relationships between obesity and morbidity and/or mortality.

It is variously defined by its adherents as having a body mass index of 30+, weight increase, fat tissue, "excess" fat tissue with sometime addition of  such as "fat accumulation" and "that presents risk to health" et al. The real 'debate' around that remains, is this a thing? [Answer: Hardly!]

This balderhockey does not even sound like a disease, even if there was something to fit up. Promoters of this like to try to accumulate meaning into this void by seeking to pretend that there's some aching-agonistes around other actual diseases and/or they cite preceding faux diseases-the very ones that have led to disease's loss of meaning in the first place.

Psychological disease presumably-mental illness, is not disease, it's more metaphorical. I only got used to using the term on the Internet, when it became too hard to dodge. Cardiovascular disease, refers to the degeneration of an organ. Cancer is obviously a disease, but given my ignorance and that its coinage is in something of a flux,  I can say little more than it is a pathological process or processes that produce mutated cells, destroying tissues and organs, leading to their removal-like bariatric surgery does-except in the absence of any disease.

Risk factors like hypertension are not diseases, they are symptoms, one that's cause(s) are often obscure. "Frederick Akbar Mahomed". Nor is there anything "difficult" about the difference between high blood sugar a symptom and that which it is used to diagnose-diabetes, a disease. As for osteoporosis that presumably is the degeration of certain bone tissue.

Conclusions, cease and reverse the instrumentalisation of disease. Respect the importance of the term and do not give in to any entreaties to mis-use it. The term does not exist to 'recognise', validate or manipulate feelings.

Body mass is not disease, nor does it lend itself to disease as a metaphor. It cannot even be described as a symptom, unless possibly, if it is as a result of a specific pathology. Whether any amount of it can be dubbed 'healthy' or no, makes no odds to what is supposed to be the required response and that is to halt and/or reverse it.

This requires no pathologisation, medicalisation, assault or brutality. It requires a truthful understanding of metabolic function and gentle resetting of relevant functions.

Arguments come from the refusal to focus directly and solely on this rather than fiction. There can be no separation between a person and the size of that person. To pathologise weight is to pathologise the person. A person suffering from such a pronounced self-pathology would be diagnosable as suffering from a mental pathology.

This is cannot be diagnosis, this is iatrogenic or doctor induced injury.

People go to their doctor to relieve suffering, not to induce it.