Oh is that so? Thanks for educating me.
Now have you ever considered maybe some people want or prefer monogamy? Or are you so self obsessed with your rightness that you cant conceive of someone who prefers something different than you being anything other than just - wrong?
Really, if you want to boil it down so far you can say poly is just a different religious belief. Any "belief" is rooted in faith. Gee this is fun.
Oh and I dont believe in monogamy, I believe in choice and trying to respect other people's choices, so long as they aren't hurting anyone. If someone chooses monogamy or polyamory, good for them. You are the one trying to force your belief on others.