So to answer your question, most nudists don't agree with your lifestyle. You may be surprised to find that mists nudists have Christian values even if they aren't a Christian. Obviously there are exceptions to this rule who coincidently all live in Canada where logic and family values have been legislated into oblivion. Monogamy has existed for millennia for one simple reason. It works. It is the law of nature because it is the law of God. God exists whether you believe in him or not. He will not be bargained with on most issues especially when he has written laws concerning the matter. You can defy the law for a while, like the law of gravity. However, the longer you defy the law, the more painful and detrimental the fall will be. God would plead with you with the love of a gracious father not to defy the law.In Genesis, Jacob (son of Abraham) had wives and concubines as he traveled to re-connect with his twin Esau. That's not an open marriage, but it is different than what I believe in in this time. There were fewer people in the world then.