How could I possibly argue that, we live in different Universes... It's just my opinion but it seems that most moral centers would include a desire for fairness, justice, peace, and benelovence. Lacking that, I'm not sure one classifies as human and consequently represents a potential danger to those around them. That's a laugher isn't it...we see that played out every day.
Actually, I just realized that you betrayed the ultimate sticking point...I wouldn't run things, if I did, then I would have to raise my level of moral distinction to an undesirable level of ambiguity.