(No fic today, sorry… for reasons of pie. Urp.)
Stay in the Kitchen: Averted in the Empire, where Gender Is No Object. No-one there would think of saying it – and when someone from elsewhere says it, they will have the damndest time trying to get the Imperial to understand what the heck they’re driving at.
And they really won’t like what happens if they succeed.
(“…so, you’re telling me that ‘rip him a new one’ is also a metaphor where you come from?”)
Spaceship Girl: Every time a female-presenting digisapience uses a starship as a cybershell, yes. Of course, they can equally well be the resident operating intelligence of a habitat, or other vehicle (Spacestation Girl), and by no means all present as female (Spaceship Chap?), so it’s also subverted a fair bit.
(As a side note, whatever the gender of the operating intelligence, the gender attributed to the actual ships in question tend to be mixed; eldraeic tradition is that a vessel takes the gender opposite that of its first captain, and so…)
One Gender Race: There are a few of these, most of them having got that way via their evolutionary process never having figured out sex, or natural hermaphroditism, or merely looking this way because of extreme sexual dimorphism; but also some exceptions – digisapiences, for example, have neither sex nor gender by default, although some of them adopt one. Many bioshells are manufactured in only one sex, usually neuter, and some clades – usually the made-to-an-ideal kind, likewise, without said usually.
But there are occasional weird exceptions. The shan kari, for example, are recovering from an approximation of this state (very slowly, because it did quite the psychological number on them, too), the anti-self-replication code in their robots having, through generalization, led to something of a Gendercide. Oops.
Men Are The Expendable Gender: Averted in both ways. Firstly, of course, because greater valxíjir and lesser sexual dimorphism with regards to the distribution of various things, etc., produces a very large number of “uppity” women who just plain wouldn’t stand for it. And secondly, because the demographics and relatively low birth rate are such that neither sex is “stupid, expendable, or going”. We Have Reserves has never been a useful strategy. That’s what mechanicals are for.
Opposite Sex Clone: Fairly trivial, for an Imperial level of bioengineering (X-doubling, made easier by earlier eugeneering out of bad recessives, or synthetic X), and done (a) on a relatively infrequent basis for reproduction and (b) rather more often to produce spare (empty) bodies of the other sex. See Gender Bender.
It is also probably worth noting that “opposite” is a little inaccurate, since “herm” and “neuter” are among the common possibilities…
(If you’re planning to Screw Yourself, on the other hand, you’d better take option (b) and occupy your clone’s brain with a fork of you, since if you make a new person and you’re the one who raised them, you’re going to run straight into major consent problems of the intergenerational incest kind, which is very, very much an ethical and legal no-no.)
Gendercide: Happened, incompletely (two-thirds of the female population killed), to the shan kari, when their learning robots generalized their anti-self-replication police-code to things that weren’t robots, and therefore concluded that it was necessary to wipe out the female of the species due to their built-in factories for making more of themselves.
Today, the Shan Kari Confederacy is known for its skewed sex ratio, its extensive use of forced-growth cloning, and its extreme hostility towards robotic technology and digital sophonts.