I support neither but I'm less offended by polyamory more then likely their is less drama for the most part in that arrangement since probably not all the parties involved know each other.

Do your left and right hand count as polyamory?

If you consider masturbation a romantic relationship with yourself, then yes.

Personally, I'm all for polyamory and wish that I knew any women who were as well.

Alas, it's not so ...

I guess that could be true, but even in humans there is variety. I read a hypothesis that most peoples who lived in the tropic were polyamorous in their relationships because they focused more on having as many successful offspring as possible rather than nurturing the few they had, whilst people in more temperature latitudes had to be more monogamous in order to give select few children attention. Obviously the later isn't an issue in the modern context, with our relative affluency. Although, I think six adults raising six children (lets say 1 child: 1 adult) would be able to raise said six children more than two adults rasining two, just because they would have more diverse occupations and financial stability by numbers. 

Polygamy is too complicated to work flawlessly, polyamory looks simpler to me.

I support neither !

To me, it all seems a bit seedy. My perception is that in most cases, you're going to have one manipulative individual exploiting two or more other individuals.

Then again, that perception probably comes from the fact that most modern well-known examples of polygamy come from those cults you see on Channel 4 documentaries, where you have one manipulative individual exploiting two or more other individuals.

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I think I could handle an "open" relationship, providing there were some ground rules. Like, no repeated encounters with the same individual, safe sex only, not in our home, make sure it's not with anybody we both know, that kind of thing. It's not necessarily what I'd want, but I would do it if my girlfriend / wife asked for it. At the end of the day, just because we're not satisfying each other's lust anymore isn't necessary grounds for the end of a relationship (particularly if we had kids or something), so as long as we were honest and respecting our partner's dignity, why not?

State-recognized marriage in general is too complicated to work flawlessly. Ideally all people would be treated equally, and married persons wouldn't be given any more special privileges (such as tax breaks) than anybody else. But, alas, that is not how it is. 

Your examples only work in your favor if the entire world switches to polygamy.  Are you also against people opting to be single?  Or perhaps being in a non-marriage monogamous relationship for their entire life?  Many people live different "non-traditional" lives with different "non-traditional" relationships these days.

I completely agree, but in my experience, men can see this difference betweeen 'love and lust' moreso than women can. To most women, they are the same thing.

Not trying to speak for everyone of course ... just my experience.