Yes, I do. And you are treading on dangerous ground - almost as if you are saying that 1) Depression isn't real, and 2) Depression is always purely situational.
Depression was recognised well before Christianity came along. It was explained in a variety of ways, demonic possession among them, and was treated in ways we would consider barbaric, i.e. beating, starvation and imprisonment. Only a few of the slightly later physicians took a more enlightened view.
Depression these days is recognised as a complex condition in which brain chemistry plays a part, but many other factors do too. Almost as if... the world is a complicated place. I would like to see some links to the scientists you say believe that the brain chemistry theory is completely unfounded - peer reviewed scientific papers only, please - and then I'll read them to see if they say what you think they say.
BTW, other medications than SSRIs are available, precisely because they have been recognised as not being very effective. My DS is on antidepressants which are not SSRIs. They have massively improved his quality of life. His depression is in part situational (serious trauma in adolescence) but is also physical and associated with a physical health condition he has - this is well documented.
You seem to be suggesting that if only we went back to the good old days, all this depression would disapper. It wouldn't. People had depression back then, they just tended to self medicate with alcohol, sleeping pills and other things.
Honestly, your dismissal of mental ill health except as an adjunct of godlessness in society is offensive.