If Moral Relativism Can't Destroy All Moral Principles, Perhaps It's A Form of Moral Absolutism

Moral Nihilism = every moral principle can be destroyed by man.

Moral Absolutism = at least one moral principle cannot be destroyed by man.

Moral Principle X = it's moral to obey local social order

Given Axiom - Local social order is allowed to destroy every moral principle except Moral Principle X.

Conclusion - Given these constraints, local social order is following moral absolutism.

Extended Conclusion - if moral relativism is defined by its constraints on what it can destroy, it is following moral absolutism.