Tyler, where is this site?
Anyway, just to give you all proper terminology:
polygamy: having more than one partner
polyandry: a woman having more than one male partner
polygyny: a man having more than one female partner
There, now you can argue the point to your heart’s content, but this time with exactitude.
By the way, John Mace, monogamy isn’t just a western ideal. Even in cultures that practice polygyny, the majority of men don’t have more than one wife. The ones that do are the more important and wealthier sort: chiefs, sultans, whatnot. However, if you mean that monogamy isn’t necessarily the right and proper way of things, then yes, I agree with you.
Blake, there are plenty of examples of sexually relaxed “primitive” cultures. Off the top of my head, there are the !Kung San, a.k.a. the Dobe Ju’hoansi, where the children often took part in sexplay (i.e. little boys inserting their penises into little girls). This continued on into adolescence.
There are the Trobriand Islanders, where children play similar erotic games. They begin at seven or eight and begin seeking sex partners at 11 or 13 years old. Sexual activity before marriage is common and expected among Trobrianders.
There are also the Sambia of New Guinea, where younger boys fellate older boys, and eventually get fellated themselves. Hey, no one specified heterosexual sex.
However, I doubt these societies are still like this today. The only pristine group of hunter-gatherers are probably the ones in the Amazon, though I don’t think things are going to stay that way.