Right, and furthermore, a rational consequentialist makes those moral decisions which lead to the best outcomes, averaged over all possible worlds where the agent has the same epistemic state. Consequentialists and deontologists will occasionally screw things up, and this is unavoidable; but consequentialists are better on average at making the world a better place.
consequentialists are better on average at making the world a better place.
That's an argument that only appeals to the consequentalist.
The title says it all.