Assume two villages in different counties. The two villages each have different moral values related to children and sex. One prohibits homosexuality and abortion because they violate nature's method of increasing and furthering the growth of the population, thus countering a trend towards extinction. The other pushes homosexuality and abortion as "rights" that all human beings should have.
Obviously depending on which village you're in you are either morally upright or morally depraved depending on your views on abortion or homosexuality. Relativism, the metaphysical foundation for ALL belief systems other than Christian theism, has no other rational conclusion in its reservoir of thought other than an agreement that both villages are correct and the moral compasses of both point to the truth.
I think this is nonsense. If I actually believed that the universe in which these two villages existed was not governed by an outside entity that created it and who administered the moral standard of the universe, I certainly wouldn't risk my life for the principles of one or the other. I would go along based on which village I was currently inhabiting. If a group of villagers from the other one began immigrating to mine and forced their ways on mine I would take the side that preserved my safety on a daily basis, if necessary. I'd salute whichever flag I was told to salute by whoever was holding a gun at the time.
Obviously again, the moral dictates of any union of these two villages would always be determined by who held power in the the ruling council. And they would change as power changed through elections or war or subversion. THAT is the situation the USA finds itself in today. We are overrun by people who have been indoctrinated all of their lives that these two villages popped into existence from nothing, evolved to the state they are currently in separately and there is no foundational principle in existence influencing either of them from making rules that favor select groups, or in fact eliminating by force opposing groups. WAR is the solution to all moral disagreements.