Life being non-stop stressful for a majority of the population is not a personal illness, it's a societal illness. Although societal illness can definitely lead back to mental illness which is a very personal affliction.

I do agree that it shouldn't be the job of GPs to prescribe away mental illness though, any more than they should be telling you what eyeglasses to wear. Those jobs should go to psychiatrists and optometrists, respectively. The GP should merely refer you to the specialist.

It does beg the question though, since society is so clearly sick and appears to be getting worse in many countries, whose job is that to fix? The obvious answers are either "politicians" , or "all of us". But politicians seem just as afflicted as the rest, or even to be adding to the sickness in many cases. And saying we all need to come together to fix it might be a truism but is basically useless.