personaly i'd want to play a female chariter and have babies :P. i always do play them.
besides the ratio is normaly nearly 50/50 male to female chariters (unless for some reason the female avs look realy bad). partly guys playing girls but also the evolving and increasing amount of female gamers. so amount of men to woman ratio realy dosen't come into it that much. heck if your that worried then just have npcs females or males you can breed with. though it would fit more with a tribe ethos about how producing new life is part of surviving.

MMORPGS come from multiplaying roleplaying. playing a role that isn't nessarly you. though it would probly come more into it of female avarters battering out their bodys for someone to have a heir lol