Notice how no matter how badly they want my argument to amount to "I hate women," it can not and will not manifest as that. Because I don't hate women. I expressly love them. No matter how small the differences between men and woman, I love what makes them unique. Because what is unique to the other is what defines them as what they are. How they interact and play off of what makes them different is what makes the dynamic between the two so appealing/interesting/compelling in irl and in 40k. With the homoginization of the Custodes, you dispense with the themes unique to how they contrasted to the Sisters of Silence. A part of it was that they were two gender specific factions that worked together. More than that, out of the 4 gender specific factions they were the only two that explored that theme so specifically. Every interaction between them whether it was in or out of combat was such a novelty. Intentionally created works of genetic and alchemical artistry paired with the unfortunate psychic blanks. The sons of aristocracy given up by their parents to become demigods fighting beside the lowest of the low-born and most (unjustly) loathed abandon and untouchable. A brotherhood and sisterhood coming together to take on the most important task the imperium of man has to undertake. Being the Emporer's Talons. Women and men, both honed to be weapons only they are uniquely capable of being. But so perfect in their differences that one covers the flaws in the other. What one can not do the other can. All that build up and effort investing in how cool a concept that is, but "fuck it the boys club has girls now and *always has* and you "hate women" if any of that was appealing at all and you want it to keep being that."