I starting writing a long answer to explain this to you, because I think you are sincere, but I ended up deleting it because it was getting unwieldy. In short, what you are proposing is simply unrealistic considering how societies and human morality function, biologically and "spiritually". Unless you can create a successful cult to push your ideas, changes to moral frameworks occur over generations. I hope you already understand this and you are just venting a hypothetical.