Does this mean that removal of any sex-specific organs negates one's group membership? Or are they only the necessary organs? In which case, does removal of breast tissue count? On the one hand, it is necessary for breastfeeding, but on the other hand, we can use formula now if necessary. What about the clitoris? Does it count if you're sterile or do not plan to have children? What if you've already HAD children?

...really, I'm just curious.