Sex is not non-binary (or mutable), and neither is sexual identity or orientation
Abstract
Sex is defined functionally, in terms of gamete production, which is strictly binary and immutable. Traits thought sex-derived (or related), in being at some remove may not be sex-specific, utilising systems common across sex; however, apparently sex-overlapping traits serve to reinforce, not compromise sex binarity. Sexual identification and orientation might be expected to show degrees of sex non-separation, but seemingly through their very closeness in derivation from sex are themselves binary and immutable. Sexual orientation is of discrete (one majority and one minority aberrant) form; with bisexuality merely ostensible: male hypersexuality and female non-sexual tension reduction. Notions of sexual identity are chimeric: sex dysphoria is mostly latent homosexuality; the remainder intensified sexual self-orientation or psychopathology-driven social contagion of a condition imaginarily possessed.
Keywords: sex, (non-)binary, immutable, orientation, identity.