But of course evolution made perception of the surroundings as wildly variable as morality. There are creatures with zero perception, and creatures with better vision (or heat perception, or magnetic or electric, or hearing or touch...) than we'll ever have. Even if humans were the only species with morality, arguing about variability doesn't hold much weight. How many things metabolize in arsenic? There's all kinds of singular evolutions that this argument seems to be unable to handle just because of the singularity of the case.