Biblical Inerrancy - mandatory to be Christian?

[Darkstar]

1. Moral relativism is the state in which there is no absolute moral authority. (MR -> No MA)

False.

Moral relativism may be any of several philosophical positions concerned with the differences in moral judgments across different people and cultures. Descriptive moral relativism holds only that some people do in fact disagree about what is moral; meta-ethical moral relativism holds that in such disagreements, nobody is objectively right or wrong; and normative moral relativism holds that because nobody is right or wrong, we ought to tolerate the behavior of others even when we disagree about the morality of it.

2. If there is no absolute moral authority, there is no way to resolve competing moral claims (No MA -> No mc)

False.

Richard Rorty, for example, argued that relativist philosophers believe "that the grounds for choosing between such opinions is less algorithmic than had been thought," but not that any belief is equally as valid as any other.

I hold the same view.

3. If there is no way to resolve moral claims, all morals are equally truth from an objective standpoint (No MC -> ET)
4. If all morals are equally true from an objective standpoint, all morals are equally false (ET -> EF)
5. If all morals are equally false, a state of nihilism is reached where people have no obligation to obey any morals. (EF = nihilism)

That would be normative moral relativism, which would be true if all moral claims were equal, and it was impossible to tell if one claim was better than another.