Just chiming in to say, don't abandon something you love because of "haters" for lack of a better term. No matter what you do in this life, people will find a reason to complain about it, and if you listen to those people, you'll never do any of the things you want to do.

Besides, "too optimistic" isn't even a valid complaint imo. In a fictional setting, it can be a optimistic or as pessimistic as you like. The only thing that matters is internal consistency (and sometimes, not even that). If people really wanted a world that isn't optimistic, they already have one.

I'm sure people complain that cyberpunk is "too pessimistic" all the time, but it's a huge genre with a lot of fans. It's really no different. If anything, I would lean into that aspect, since these people clearly think it sets you apart.

Sorry for the wall of text, but I would hate to see you give up on your project just because some people struggled to see it from your perspective. You'll find your audience with time (and effort, of course).