I’m a huge fan of sci-fi and I do love myself some sci-fi horror, like those in Love, Death & Robots and the German series Dark, but even Dark is nowhere as dark as Black Mirror is. The difference being Black Mirror is entirely focused on showing you the darkest side of human nature. There are no redemptions in most of the stories. No typical hero journey, no light vs dark narrative; just shit going from bad to worse to nightmare fuel.
If there’s one thing you can take away from the entire series, it wouldn’t be “Technology is bad”, but “Humans are fucked up”.