Not sure if you noticed that your sources disagree with your thesis, with the limited exception that theres no convincing evidence that seratonin is the single causal factor for depression, which myth was heavily promoted by the relevant pharma companies.

Your articles also say that:

- depression medication does appear to be effective in some cases regardless, indicating some other neurochemical mechanism at work.

- the existence of a "neurochemical imbalance myth" underpinning psychology as a whole is, itself, a myth.

- the idea that this mythical myth about neurochemical imbalance has been debunked, is also a myth.

- that the psychological scientific consensus has, since the first peer-reviewed mention of the word "neurochemical" in the 60s, quite consistently been aligned with the 1978 synthesis statement by the then president of the APA:

> "Psychiatric disorders result from the complex interaction of physical, psycho-logical, and social factors and treatment may be directed toward any or all three of these areas."

Your second article is particularly clear in explaining all this.