I cannot answer why so many people are anti-medication, but I will not take them myself. I have taken meds a couple of times, decades ago, but never for more than 24 hours and frankly, I don't even remember what they were except one - elavil. I took one dose, never again. I think there were two others.
There are a couple of reasons for me. One, the way they made me feel was horrid - like I was wrapped in plastic wrap, and my brain turned to molasses. Second, I hate the message - you don't have the tools, nor the ability to acquire the tools, to live life successfully.
I'm not trying to sell anyone on my thinking, just answering the question the only way I can - by sharing my experience and perspective.