yeah unless i have terribly misinterpreted that that was an aggressively irrational clause. the concept of gender is the one that is a social construct and therefore infinitely malleable (to go back to a previous point, the two greatest masculine warrior archetypes of antiquity in Alexander and Achilles had gay lovers and antiquity was like well yes that's what men do), whereas race, while shall we say taxonomically smudgy, is clearly and irrefutably based in the germline. the distinct phenotypes shared by people with geographically proximate ancestors is so apparent it almost need not be expounded upon but; not a lot of redheads in East Africa, not a lot of afros in Scotland.