One this is a completely unhelpful comment. Similar to name calling. A much more helpful one would be showing that medical researches clearly divide problems into psychological and psychiatric.

And no one I know in research, or the psychiatrists I know would say there are many problems that fall into one category or the other. The vast majority of problems you'd see a psychiatrist for fall into both camps.

Mood disorders, and anxiety. The two most common categories of disorders are at least partially treatable by both therapy, and medication.