OP, you're going to have to be a little more of a participant if you want a fruitful conversation.
However, from your very brief and vague posts, I'm guessing that you feel as though anxiety is over-diagnosed because it's easier than pursuing other causes for a persons difficulties?
I think there is merit to that argument. I also think that some people self-diagnose anxiety during bouts of what would previously be called low mood or stress or nerves about a situation.
I wonder whether doctors feel obliged to give the person a 'diagnosis' because the patient can't or won't grasp that fluctuating confidence and self-belief is perfectly natural and in many ways healthy.
Again, I'm only thinking this about some people. Those who would rather not deal with a tricky situation and dodge responsibility because of their anxiety. There are many who are real sufferers of anxiety and respond well to support (therapy, meds, etc).
I recognise that anxiety is a real condition that can be debilitating.