There is no such thing. I agree with them, and under various moral philosophies I could make convincing arguments that they're right, but you're off the rails.

Or, if you've really found an objective measure of right and wrong that isn't based on a subjective positing of objectivity, you've upended an entire field of study, have a very rewarding future and are totally set for life. You'll just have to forgive us for not waiting with baited breath.