Well, I completely disagree (we'll likely agree to disagree), and I didn't copy and paste any of that. I wrote it myself. Also, I have met many people across different illnesses and different levels of severity who were helped by them and said it didn't numb them but actually over time helped them enjoy things more. I also know some people who started on one AD and the side effects meant they still after some time had anhedonia etc - some switched dose and others the AD and they had the issues resolved that way. ADs are like any other medication (it won't always be amazing for everyone). Most people with depression and other mental illness already have anhedonia, lack of motivation etc - and ADs do take time to work and stabilise along with therapy etc, so initially many people don't feel a change or may feel sluggish or like again they're numbed. However after giving the AD time, they're able to get more motivation and enjoyment out of hobbies etc - once again context in looking at data and studies matter, when did you check in with the participants, how often, what were the questions, did the questions change or not, were the questions qualitative or qualitative? As well as many other questions.
I also didn't say the only cause for idiopathic depression and mental illness is a chemical imbalance but that it can be and there can be many causes, sometimes we cannot change the cause but we can improve our symptoms and our lives regardless and we should (most of the time its a mix of issues we can change and some we can't but we can heal from). There are many different meds which don't 'solve an issue' but treat symptoms (which sometimes for patients is their main goal, of course once testing etc has been done to make sure there isn't another cause of the mental health issues).
Also, you have done your studies, fair enough, but research does (in some things with unclear facts/debate) always agree. There are studies that have found the opposite (whilst having good sample size, double blind, longitudinal, etc). I don't know the context of your study. The main, etc, and data always need context. ADs aren't given out like candy if you look at it proportionally across the population and I personally think that for ADs (and other meds for both physical and mental illness) it's much better to have easy accessibility through a GP to manage them and that people can live good and productive lives using a low-dose AD to help them along with lifestyle changes and therapy. It all comes together to help the patient. Furthermore, ADs (particularly off-label ones) can be and often are helpful for low-level nerve and chronic pain and also sometimes for blood pressure, etc, and sleep as well.
ADs compared to other medication like high blood pressure and omeprazole isn't that prescribed. Again lots of people get Omeprazole or high blood pressure meds (it doesn't mean we should stop this and there's no rhetoric on blood pressure meds being given out like 'candy'). Again people with high blood pressure get the meds but also education (online or in person) to lifestyle and health/exercise changes, diet changes and more and if needed more treatment from cardiology. In the latest top 10 most prescribed medication, no ADs showed (not sure about top 20). We should address how modern life and policies link to worse mental health - homelessness, evictions, cost of living etc however this can co-exist with giving people acess to medication. And for most people with at least a moderate mental illness they do need some form of medication especially in OP's DH's case and many others including children. On your research many people take meds (of all different types) and they don't tell their GP it doesn't benefit them - you'd likely the same for many other meds. It's unfair to criticise GP's for this as patients likely lie, if they were honest, most GP's would look at social prescribing instead or change dose or change the medication. That has more to do with trust in doctors and access to GP appointments as well.
Finally, it's you're lucky day, as you've met someone who benefited truly from psychiatric medication (antidepressants and others). Like my experiences with other meds, the first AD I took didn't help and I felt the same, tried for weeks. However after changing it and getting the dose right, I'm still mad at myself for letting stigma be the reason I took so long to try them, I did start seeing more 'colour' and got joy and other emotions back - not immediately but Iver a few months, this was before I'd done any therapy at the time (I had done some poor and short therpay before). They have and continue to save my life, and I started taking them in my teens for a variety of reasons and history. I'm guessing you don't agree with me, that's fine, so I likely won't reply after because I have a feeling I'm not changing your mind but you had points I felt I wanted to address this time.