Moral Relativism vs Moral Realism: Critique My Position

State where you stand on whether moral truths are objective or relative, and this argues the opposite back at you with three distinct philosophical lines. No straw men, no agreeing to keep you comfortable. If you have only ever heard your own side, this is the sparring partner that finds the holes before someone in a seminar does.

I hold the following position on moral relativism or realism: {USER_POSITION}. Critique this position rigorously from the opposing view. If I am defending moral relativism (the view that moral truths are relative to culture or individual), argue from moral realism (the view that some moral facts are objective and mind-independent). If I am defending moral realism, argue from relativism. Use at least three distinct philosophical objections, citing relevant thinkers where appropriate (e.g., Gilbert Harman, Russ Shafer-Landau, J.L. Mackie, Plato). After the critique, steelman my original position: give its strongest possible defence. Conclude by identifying what empirical or philosophical evidence would most decisively settle the debate.