"What exactly is "cultural relativism" in metaethics? Is cultural relatisim true? Can cultural relativists uphold the principle of cultural tolerance?

Cultural relativism is one of many alternatives within the domain of metaethics, a theory relating to moral judgments and whether they are truth-apt (capable of being true or false). This theory is supported by Ruth Benedict as she argues that normality is relative to culture, to be morally "good" tantamount with normal, so therefore morality is relative to culture. However her statement that normality is synonymous with being morally good is without basis and overlooks the minority of society and thus her argument is chauvinistic. James Rachels illustrates how the theory is false by point…