Moral supremacy is the claim that a particular moral framework holds absolute authority, the Islamic position being that divine revelation provides the standard against which all human systems must be evaluated.
The concept of moral supremacy is not inherently problematic. Every moral framework implicitly claims superiority over alternatives: if it didn’t, it wouldn’t function as a framework. The utilitarian claims the greatest good for the greatest number. The Kantian claims the categorical imperative. The liberal claims individual rights. Each framework claims authority over the others by its very existence.
The Islamic claim of moral supremacy is specific: divine revelation provides a moral framework that is not humanly constructed, not culturally contingent, and not subject to revision by those in power. This claim matters structurally because it provides an external standpoint from which existing systems can be evaluated. Without such a standpoint, the systems that benefit from current arrangements define what counts as moral, and challenge becomes impossible.
The suppression of this claim from public discourse is a form of epistemic control. When the highest standard of moral authority is removed, the only remaining standards are those produced by the systems that benefit from not being judged. The result is a moral vacuum in which power defines justice.