In contrast, there is something quite pleasant about the...
There are universal, objective moral values
I see there is agreement with Pro's argument when Con stated, “It is already agreed that the human sense of morality facilitates our persistent survival. Can that case be finally closed?” That “case” cannot be “closed” because that is the case that represents a “universal objective moral value,” that is, “Thou shall not kill” each other within a group, otherwise, there is no group. This “universal objective moral value,” is found throughout many species. For example, the subtle nonverbal communication between a parent and infant is miraculous, and it flows through life's Unalienable Rights in harmonious inter-species symmetry. This symmetry is apparent when we hear the cries from the screeching chirps within a nest, to the whimpering pups in a den, to the cries of a human infant along with the feelings those sounds evoke; the sounds throughout the tree of life. In many species, a newborn cries instinctively, elevating its cry to a scream when something is wrong--such as hunger triggered by the genetically programmed need to pursue food. Among humans, the parent is instinctively annoyed or alarmed by this cry and, in distress, tries to seek mutual Happiness by catering to the infant's desires. In contrast, there is something quite pleasant about the sight of a smiling infant, as it naturally invites the sharing of Happiness. The behavioral difference between a smile and a cry are the tenets of right and wrong, the primitives of Morality. Therefore, the cries throughout the tree of life is the stimulus for mutual Happiness between the parent and child group, in the “universal objective moral value” of “Thou shall not kill” your child, in order to preserve the parent-child relationship within the family group. Without this “universal objective moral value,” humanity will not be here. Con went on lamenting about: selfishness, mass slaughter, killing each other, greenhouse gas, genetically modified cows and crops, destroying the planet, etc. Ah the humanity! Unbeknownst to Con, said lamenting is a morally good and natural activity within the context of a “universal objective moral value” in the evolution of group Happiness. Con's distress is input to the evolution of social group values moving the group in a better direction relative to Con, and others like Con. Con stated, “Self-proclaimed righteous dogma is the source of every idea concerning morality.” Con is confusing social values, beliefs (dogma) with morality. Morality is like a force in nature that brings life to a group via mutual positive-feedback between members within a group, which is the genesis of social values, beliefs, etc. Therefore, the “universal objective moral value,” that is, “Thou shall not kill” each other within a group, while embracing the Unalienable Rights of others, is the foundation to this moral force that keeps a group alive and civil.