Most people can tell the difference between a man and a woman too Fruitcake.<quoted text>
Most people can't count?
See. Not that hard.
But seriously, most polygamists seem to be straight deeply religious folks, so I think that the fact that straight couples can marry with impunity right now is the biggest boost to the legality of marrying multiples.
You don't hear many gay folks wanting to marry many at a time. Seems to be a religious fundamentalist heterosexual thing.
Women are innies and men are outies! See. Not that hard.
But seriously there are gay polygamists. And being few in number is not a reason to deny equal rights is it?
Some polygamists are religious fundamentalists, again not a reason to deny them rights.