I listened to DFW (guilty feminist) interview EI and she touched on this point. She said the reason Dolezal identifying as black wasn't ok was because Dolezal wasn't half black to begin with, whereas we are all half male and female, because that's what our parents are!!
God alive. If that doesn't demonstrate the failings of our education system, I don't know what does. Though I suppose even the best teachers can't do very much with the terminally stupid.