Please do not be offended by the following. My synthesis of the antithesis and thesis of the psychiatric and psychological profession is quite honest and simply an attempt to be objective.
First and foremost...what is the thesis.
The thesis in a nutshell is that that we can analyze people and diagnose them with illness based on behavior.
Second we can correct this behavior based on prescribing medication, which alters the chemistry of the brain in known ways to alleviate the symptoms and/or cure the disease.
The issue with the first thesis is manifold:
1st, how do we determine what is pathological? By a comparison to the societal average? On that account, how do we honestly express objectivity? Let us give an example...if we use the correct model of averages and apply it across history, it would have been pathological in Nazi Germany to do what is actually morally acceptable.
2nd, can we honestly say that a society is not pathological in nature. For example, right now in Africa, kids are being slaughtered and starved left and right...there are mass genocides everywhere in the world. Can we honestly sit here and diagnose people as narcissistic and what not when we as a society ourselves are incredibly narcissistic? Are we not committing a form of existential cannibalism?
The issue with the second thesis is also manifold:
Can we reduce desease down to a neurocorrelate? If so, then medication might be prescribed justifiably. But can we also account for the affect of altering so many variables in the human system to ethically, without any guilt, honestly dictate what is occuring when we do? Based on my knowledge of statistics - which is vast and deep - the answer is no for several reasons.
First, we cannot because as a system increases with complexity the chances of something going wrong, or in this case, not understood, exponentiates, and as we all know, the human brain has more variables than the galaxy - or thus far we have observed.
Second, is the fact that reductionist is a fallacy as it relates to truth, meaning that it is incredibly useful as a philosophy in practice, but in truth, nothing is the sum of its parts, for their is truly no such thing as a closed system, and reductionist assumes that an object is closed to its parts.
This is why I believe that psychologists and psychiatrists are persecuted so frequently among "common" folk. It is because of an assumption and a lack of humility as demonstrated by its own denial of its own hubris.
First: I do see the positive aspects of therapy. I am not criticizing here...or saying psychology is useless. I am saying that there are fundamental errors as there are in all professions that must be confronted before it is to progress.