I agree about the bees. Yes there is far more variation in other organisms than Humans. In biology homosexuality exists, but it means reproduction by same sex individuals. Not what Humans do when they are homosexual, that is rather social interaction from a biological Point of view.

Sex in biology has a clear aim: genetic recombination. Everything in function of the recombination of 2 gametes can be considered sex in Biology.

(I think that only plasmid exchange is non sexual exchange of genetic information but eukaryotes don't do that) A lof of social interactions in zoology however, we consider as sex or gender interactions in culture.

the messiness of sex, of others, other organisms, is just a perspective.

That's why we need a democratic economy. Distribute the power over the means of production.

12000? It's over 20000! https://www.discovermagazine.com/planet-earth/why-this-fungus-has-over-20-000-sexes

Sex is not the same in biology/science as it is in culture.

Sex in culture may be a choice, in biology it is a given. Sometimes a bad interpretation of facts.