Actions exist in reality. Actions are objective
Agreed. However the motivations, justifications, and interpretations of those actions are subjective.
Reducing everything to non human aspects in order to qualify them as objective is a fallacy
If it's not objective, what distinguishes it from mere opinion?
Moral evaluations of actions are based on harm being done
Whose morals, yours or mine? Harm suffers from the same issues with definition. What constitutes harm? Upon what objective and universal standard can it be evaluated and measured?
It takes consciousness to do so
Indeed. Just as anything else above basic functions does. Consciousness is also the source of the disagreement over terms.