>Evolutionarily speaking, it seems likely that depression/anxiety are there for some purpose, and yet we treat them both like meaningless pain meant only to be banished using drugs. I believe both are signals that something in our environment is not working for us. They indicate emotional or physical needs unmet---needs for safety, autonomy, connection, etc.
Yes, that's all true IMO, but the problem is that many times, it simply isn't feasible to change your environment. So antidepressants are a good way to deal with the problem.
For instance, suppose you live in the ghetto and are constantly struggling to make ends meet. How do you change your environment here? Well, here in American, you don't. You just suffer. If it were that easy to get out of poverty, most people in that trap would do it. Indeed, many things in society seem to be actively designed to keep people trapped in poverty.
What if you're lonely because you're single and have never had any success dating, and the reason is that you're cursed with being extremely unattractive? There again, there's only so much you can do to change that. (Or worse, you have a serious physical disability, which really limits how many people are willing to date you.)
>but I believe the depression/anxiety are there to force our conscious self and the people around us to acknowledge that something is wrong.
Sounds like an interesting theory, but in reality, at least in this society, it seems to have the opposite effect: it makes you an outcast. No one wants to be around depressed people, so they're stuck being lonely, which feeds the depression, it's a vicious cycle. Antidepressants can really help a lot here, by giving you a short-term boost to jump-start your social life and just to help you cope with life in general.
>This is a completely different paradigm that explains depression and anxiety as meaningful signals of underlying problems rather than as inexplicable suffering to be numbed through prescription medication. I believe it will prove the more robust and also the wiser way of looking at these experiences.
I think the problem with this idea is that this seems to require some gigantic changes in our very culture and how we deal with people who are depressed.