Good points.

I would like to reiterate that Jung explains at great length, the Anima and Animus, and how it is part of our psychic development as living beings. When we sey "feminine", we mean Anima, and so too with masculine and Animus. Hence, the assumed masculinity and femininity are not like any other group assumption, they are part and parcel of the human race.

Hence, in this case, i see no problem with the assumption. Though i would likely be agitated about any other grouping.