That’s where cultural relativism fails to the idea of moral progress (Rachel, J 1993, pp.21-22). Which means there is a universal standard, where the original values can be replaced with the inferior one. But that goes against cultural relativism. “Moral progress is impossible. Progress means replacing old values with new better ones” (Pismenny, 2016). But according to cultural relativism, there is no “better” just what is right for each culture.
Another issue would be the fact that most cultures don’t want to intermingle with other cultures or the fact that their cultures don’t allow them to. People are always traveling and immigrating all over the world, which can lead to cultural clashes and that is what makes up America and we are great for that. We make up a culture with all the ones we clash together. At this point, cultures will start to have the same