@stripeanderson (how do you reply to these)
first, good taste. valor life. anyways, i vaguely remember seeing the character designer of the leaders saying something like 'blanche can be interpreted however you want!' and i don't think there's any more official source than the actual designer!
is blanche a guy with really long hair? are they an androgynous girl? are they neither? who knows! just choose whatever interpretation you like best!