Summary by @tldr:

I have a lot of questions and think it would show great character on your part if you checked out my response and made one back so your followers and myself can fully understand your position on this subject better.
As for using the term "Free moral agency" it is simply a theological expression, man-manufactured for his own convenience, and like most human inventions, is not the truth at all.
These findings also reveal that monogamy is an imported idea that gained significance through modern religion, civilization and evolution.
So, in the six large, highly stratified early states, commoners were generally monogamous but that elites practiced de facto polygyny.
In return they morally justifiy it by telling them self monogamy is just a social construct and it is not real, so the problem isn't that they cant stop fucking other people to save their marriage but its actually societies fault.
Then the people they are in relationships with want monogamy and dump their ass when they realize the person fucking around was not worth the time wasted?
Just like gays have a right to express love to whom they choose, I am of the opinion that people who do not find monogamy part of an ideal relationship goal, be allowed to set the rules that suites them as long as it's an agreement between both partners and they both are comfortable and happy in it.-{@msgivings}- Everyone has the right to express love to whom they choose.