I have noticed a large swell in the articles I read from people who are both single and in marriages/relationships who don't believe in monogamy. Usually the premise is that humans are just not meant to only sleep with one person. To me, this sounds crazy lol, but I have to take into consideration that everyone's lives are different and everyone has the right to define their relationship as they see fit. I personally believe that you can be completely happy married to and only sleeping with one person. But that's because that is my reality. Everyone's life isn't my life.
I have no problem with the "non-monogamists" of the world. I do however have a problem with "anti-monogamists," if that makes sense. Those are the people who tear monogamists because they dare to believe they can be happy with just one person. To them I say: don't place your circumstances on others. Just because you have never found a person worth marrying, or worth being monogamous for doesn't mean monogamy/marriage is flawed, it means your relationships have failed at monogamy.