I clearly see this is getting nowhere fast so I'll play along since you don't know anything of the origin of morality. I just have a few questions for you because I really don't have any interest in continuing
1. What was considered right and wrong? If we were born with the ability to tell right from wrong (in this case, our ancestor evolving to the point of us knowing). How was right and wrong established if we did not know what was right or wrong? Neanderthals were supposedly cannibals which was a part of survival, hence making it moral but know it is immoral. You yourself stated that we don't even fully know what is right or what is wrong.
2. If morality is subjective what makes ones morality better than the other? Don't say the majority decides because that is irrelevant seeing how everyone will never have the same opinion
3. I eliminated culture because it is honestly irrelevant. Morals are what established order for the culture to be present and keep order to maintain the culture. So once again, if two groups of people from different cultures and have it out at each other's morals. How can we say one is more moral than the other?