they actually arent. humans are remarkably not sexually dimorphic compared to all of our recent ancestors and modern humans are less sexually dimorphic than pre-civ humans. Like we are fine-tuned to hone in on those differences and we still fuck it up sometimes.
saw that clip of Kovach using the n slur multiple times from like 2010 and like idc if he was a teen. My Black biracial ass was sat down by my white grandma when I was like 6 and told that that was a bad word that shouldn't be used (even tho I can technically reclaim)