Can Gods/Deities gender swap?
Gods' Bodies are made of divine power, and it has been said that they can change their appearance to whatever they want.
So technically they should be able to change genders either wholly (inclusive of reproductive organs) or just the face plus body physique.
Seeing as cases similar to Oliver's wife's are common in the higher realms (stealing wifes), could it be that most of the actual women who live in the higher realms have disguised themselves as men, causing the Men to women ratio to be so low?
Frankly speaking, it is a very logical thing for women to do. Men on the other hand, maybe only deviants would do something like that.