TRICKOFTHEDARK has some personal headcanon regarding the gender ratio in Tolkien's works:
...The Hobbit has a severe dearth of the feminine. But I've always liked to pretend that Thorin, Fili, Kili, and Bombur are actually women dwarves. And since supposedly no one can tell the difference between male and female dwarves unless you strip them naked (the women have beards, etc.), this totally works. Also Bombur is pregnant. Seriously, the book and the film are both way better if you go in assuming this.
Context (several months old) asks that the fandom give (a polarizing movie-specific OC) a chance, dammit.
(Warning: comments may contain spoilers for The Desolation of Smaug.)