Oh I realized a thing about the Paul/Feyd-Rautha fight. So usually if you have a big fight scene, but especially if you do something like have a character get injured in a way that would definitely be fatal if they weren't cursed with inescapable Main Character Energy, you follow up the fight scene with some moment of comfort or relief or something, which serves to release the tension for the audience and let them know whew, that was scary, but it's okay now. Your character is hurt but they're gonna survive. (Or alternately, if they're dying heroically, it was worth it and what the narrative demanded.)
But here there's nothing. Paul is surrounded by devoted followers; his mother; his lover; one of his oldest teachers and a loyal servant of House Atreides. No one steps forward to offer a shoulder to lean on or help him to his feet. He's left them all behind. He's not a person who got hurt in a fight anymore; he's a myth that people shrink back from. So he pulls the knife out by himself. He stands up by himself. Other than the emperor very begrudgingly touching his hand to kiss the ring, I don't think anyone touches him at all for the rest of the movie. He's completely alone. They never release that tension, because Paul's alive but it is very much not going to be okay.
so within the universe of Dune, gender roles abide by a rigid false dichotomy created by the bene gesserit - men lead the noble houses, while the women may join their order, and the powers of both are kept intentionally separate. at the same time, the plot demonstrates repeatedly that the role of paul atreides as a character is that of the border between the concepts juxtaposed within dichotomies: he is both an outerworlder and fremen, both harkonnen and atreides, both a duke and a disciple of the bene gesserit.
as such, it follows that within the in-universe gender structure, he occupies the roles of both male and female, thus being functionally and societally nonbinary. in this essay, i will -
yeah I feel fine, why? oh, my hand tremors? yeah that's just a thing don't worry. yeahh it's a side effect of the dark arcane power boiling like magma inside my veins at all times. it's fine it makes some things hard to do but I get by yknow.