Why Is Moral Objectivity Wrong

Mackie, in his, The Subjectivity of Values, argued for a moral skepticism by saying that there are no moral facts and that all moral judgments are simply wrong. In order to understand why he believes this it must be established what his theory is. Mackie claims his theory is an error theory concerning objective morality. Mackie argues that moral judgments “assume moral objectivity, which is itself wrong.” Mackie argues that moral objectivity must have two things in order to exist: intrinsic reason-giving power, and the ability to categorically motivate humans to act. Mackie thinks that moral values can’t have these properties, and thus are wrong. He proves, in his argument from relativity, that moral objectivity doesn’t have intrinsic reason