Morality is a human construct. More specifically, it is a normative construct of language. It is used as a tool to maintain power and promote normalcy, but so what?
People are indoctrinated with this normative perspective, but accept it as some self-evident truth. But there is no absolute truth. This, too, is a contextual function of language.
Since the dawn of civilisation—and perhaps longer—, humans have been constructing moral codes of behaviour. From attributing moral origins to supernatural gods, they’ve attempted to move to a secular humanist vantage, ascribing these powers attributed to nature, but this is little more than a metaphysical euphemism in order to appear to be more scientific as a result of Enlightenment.
Clinging to absolute morality is like clinging to religion and gods.
As Marx said, ‘religion is the opiate of the masses.’ Clinging to a sense of absolute morality is not much different to clinging onto religion and gods. There’s a sense of security. It’s comforting and weaved into the fabric of most societies.
Still, so what? As long as the masses prefer to believe that morals somehow exist in the wild, and people, being story-lovers, are exploited by persuasive storytellers, we are resigned to this situation.