well i wanted to come up with the simplest most accurate descriptor i could think of, and "marxist transgender lesbian scifi" gets most of the way there. it doesn't mention that it's on a post-apocalyptic earth where people can only live underwater in colonies and on submarines, or that it's specifically a mecha series, but those aren't the core important bits

also it just has a massive cast that primarily consists of transgender lesbians. like, i can probably count on one hand the number of major important characters who are for sure cis, and would need several more arms to count all the confirmed trans ones.