From the perspective of hedonism, unpleasant experiences are bad, pleasant experiences good. Each of us has some experience that he thinks is unpleasant and one he thinks is pleasant. From this whole thing we could get to what is unpleasant and what is pleasant to each other, and the rest to prohibit within the framework of freedom from. From this you could deduce the law. With the fact that it is a hedonism. Utilitarianism could connect but remains a problem with the sacrifice of the child's life. Do you have any idea how to remove it, or how to come to the morality of a generally acceptable relativism and freedom from? Maybe some referendum ?