Making the concept of mental illness not nebulous

This is perhaps an excuse to use the word to do whatever. Mental illness is a hazy concept but is used in areas where precision is required. Many things are under the umbrella too and the original definition and the current consensus one are quite different.

Is strict biomedical thinking the only true mental illness for which the rest of the stuff is applied? Is the psychosocial paradigm one which warrants different language because the concept is different. We are all products of our learning and upbringing and experiences whereas the privilege (and inhumanity) of the biomedical paradigm is only available to the biomedically mentally ill.

The concept of social disability as a reason for treatment and outcomes based upon improvement by altering indivudals begs serious questions about the aim of treatment. It also means there's a different treatment target. Society is the cause of social disability as much as individual differences.

And homosexuality was a mental illness but isn't any more. How was it one in the first place.

Simply because there is no rigour in the concept and anything which the psychiatric hegemony decides is too different can be a mental illness.

This is why it shouldn't be allowed to be nebulous.