That makes me the fire.
I view monogamy as a perfectly respectable relationship model, having practiced it myself for many years.
I do believe non-monogamy is more natural to humans as a species, however I don't view "unnatural" as a bad thing. I think at this point in our evolution the lines between innate and learned behaviors are blurred.
If you look at poly arguments with a non-prejudiced eye you will find that those arguments are against people who are prejudiced against us. For instance, the old "marriage is one man one woman" argument is a religious based argument trotted out against homosexuality, bisexuality, and polyamory. Because of the prevalence of christianity in western society, that view is considered by some to be natural, whether they are devout christians or not.
At this point I could go on and on. I understand that you want to be a champion of monogamy. I understand that you think you are validating the monogamist experience. I would like you to understand that many of us had to overcome many of the hurdles of a monogamist society to get to where we could be comfortable practicing poly without guilt, etc. I would like you to respect that it is up to an individual to decide for themselves if they should move forward or not.
As for your argument against love being infinite...you are unable to acknowledge the possibility simply because you don't feel it or understand it. I can acknowledge that you don't feel it, but you are denying that I can. If you were to say, "Not everybody believes in infinite love, but that's okay and it's up to you to decide if you believe it is or not", I would agree 100%.
Well, I'd say fire is a bit of a stretch. And while I hope that comparing the poly struggle, to what homosexuals have had to endure was more of a tongue and cheek reference on your part, I'm sure they could do a much better job highlighting their true hurdles for a proper perspective. So I won't bother getting into deep discussion about it, but I will point out that no one has been drug behind a car to their death for being poly.
That being said, I've never claimed that poly wasn't a valid relationship model. Granted, there's much about it that I don't understand, but not once have I claimed it to be wrong, unnatural, etc... so this notion of me being "anti-poly" is wildly inaccurate.
And no, I don't dismiss infinite love because I am unable to feel it. Sure, it's part of how I come to that conclusion, but simply put, it does not make sense. All of the analogies/examples are rife with holes in my opinion. But I dismiss it for the same reason I dismiss the existence of god. It's not subjective. It either exists or it doesn't. And until the evidence shows otherwise, I have no choice but to go with what my logic leads me to. I don't care about being a champion for monogamy. I have no interest in interfering with happy poly relationships. But these stories where one drops the bomb, and the mono partner torments him/herself to save the marriage, clinging onto the "you're enough" "love is infinite" mantras that are next to impossible for some to believe. And they get painted as the bad guy, or an unloving partner for feeling jealousy.