I suspect they mean that psychologists are more a problem than a useful profession.

They certainly are when they're poorly trained and not held to proper academic standards.

I've had more than one licensed psychologist attempt to proselytize to me. Granted, my location is part of the problem, but it still should never have happened. There are other, less rigorously trained people you can go to for that kind of thing and they're a dime a dozen. It objectively made things worse for me as some of my most major issues directly involve religion(s) pushed upon me as a child.

Not their existance, their utility

Do you believe the same thing about psychiatrists? How are we to deal with mental illness?

>How are we to deal with mental illness?

Ineffectively, if the current state-of-the-art is any indication :(