There are two types of humans, not one. God made them male and female. When you attempt to make them the "same" by diminishing their differences, you inevitably do one of two things: (1) Force everyone to force the puzzle piece of their own gender into another gender's spot, or (2) make a new gender by taking half of each to create a new kind of human. Hence, you either kill off one gender completely or half of each gender in order to make all of humanity the same--thus making a subhuman of one or both of the gendered humans. Any philosophy such as this that argues one must do violence to humanity in order to make it better is suicidal and psychotic. As such, only that which preserves humanity as God made it can be considered Christian and good.
"The rise of women, however long overdue, does not require the fall of men."
Christina Hoff Sommers
And I would argue that the rise of women does not require the fall of womanhood either.