>>40501542 (OP)It's because you're interpreting it through classical gender roles when it's more about archetypal dynamics. The right side of the tree is active/giving, it is considered masculine. The left side of the tree is receptive/containing, that's considered feminine.
Chokhmah is wisdom, intuitive insight and potential, Chesed is kindness, love and generosity and Netzach is eternity/victory, it's represented by endurance, ambition and drive/passion, it's the "animalistic" sphere and for this reason it has sexual undertones, but they're animalistic sexual undertones linked to reproduction, survival and beauty.
Binah is understanding, structure, logic and containment, Binah is the womb of creation and she gives form to the insights from Chokhmah, it nurtures ideas into form. Gevurah is severity, discipline, restriction and strength OF WILL, it's the energy that represents all boundaries and limitations. Hod is glory, intellectual clarity, humility and the ability to reflect.
All the sephirot are emanations from Keter so te picture of the tree is just a way of dissecting Keter's components, it's a visual aid. In reality all these spheres or energies would be comprised into Keter as a single point or singularity. And all the paths in between (the netivot) would form a field around Keter when everything's collapsed in it. The netivot transport the different energies of these spheres as they form a field, and all these energies flowing together is what forms reality.