I closed it up and made it a private development instance last year, but you basically just described Dubvee.
Far left crazies and far right crazies are removed with equal prejudice, though the far right is much rarer (and often just trolls). Regardless, it's moderated here to a, well, moderate temperature. We also don't federate with the Triad (Hexbear, Grad, and .ml) as well as a few other instances (one of them a big instance that throws an error on a calculator) that are centered around and encourage identity politics (another source of what you're describing in your post).
Even though we're "closed" I still keep the instance running in order to develop the Tesseract UI, and if you want to try out the kind of space that's curated here, I would be willing to approve your application. I've toyed with the idea of re-launching and seeking out another admin or 3, but haven't had the time to put much thought into it.
TL;DR is I've always tried to run Dubvee as "normie friendly" and cut out some of the more, uh, rabid parts of the fediverse, and if you want to try it out, I'd be willing to allow it.