When people treat the topic with the same sort of dry, academic interest that is now used for discussions like, "What was the most popular card game in 1850?"
Things change. E.g., there were many "important" theological and political questions in the middle ages that now seem impossibly distant, almost meaningless.
Gender is already becoming less meaningful. Maybe it will never become meaningless, but at the very least we can take it from "primary determinant of social status, acceptable behavior, allowed work, and economic outcome" to "about like eye color".
