Thus, for the vast majority of people who do subscribe to the subculture of polyamory, what I said is essentially correct.

I suspect you meant "do not subscribe."

I could also be totally wrong, if poly women are generally more "empowered" than I'm estimating, which is entirely possible.

My evidence is largely anecdotal, but I suspect that this is the case. Men and women in the poly subculture seem to have approximately the same attractiveness distribution as the broader population, though only if you control for the subculture's demographics, which skew heavily towards white, young, liberal, geeky, pagan bisexuals. Members of those demographics likewise skew towards feminism, egalitarianism, and other such ideals, so one should certainly expect poly women to be more "empowered," which so far as I can tell they are.