I don't make such claims, as far as I can tell. Moral realism, which is what I argue, is the thesis that there are propositions that express objective moral facts. It isn't a thesis about how people do behave; it isn't a thesis about how people ought to behave; it isn't a thesis about what people believe.
How people ought to behave just doesn't appear to be objective though.
In many societies, honor killings are the norm.
I think they're evil.
Why are they objectively immoral, & why am I objectively right (or vice versa)?
In many societies, slavery is/was the norm.
In ours it isn't.
Once again, we face the question about how objectivity is employed to say one is factually moral & the other isn't.
I believe it would save confusion if, rather than using the word "morality," you would specify whether you are referring to propositions, or acts or behavior (or perhaps even some set of beliefs).
I don't understand this.
It's hard to avoid using the word, "morality", when the topic is exactly that.
How did someone determine that this was an act of rape?
In this particular case, the male chased down & mounted a very unwilling & angry female from the other pride.
As evidence of his hostile intent, when he chased down a male in the same raiding pride, he slashed open
the male's genitals. Clearly, both were cases of unwanted sexual contact.
In any case, I take you it you likewise object to human rapists being prosecute, convicted and confined to prisons for some period of time. Obviously lions don't do any of that.
Your grammar is confusing, I'll just state.....
I believe rapists should be caught, prosecuted, & imprisoned if found guilty.
Come again? Your explanation of "the origins of morality" is stochastic? What do you mean? (And what does the word "morality" in your sentence refer to--moral acts, beliefs about moral acts, propositions about acts?)
Please excuse me if I use an arcane word as though it were common.
I'm a recovering engineer, so I use terminology which is familiar.
For ref.....
https://en.wikipedia.org/wiki/Stochastic
I see morality as analogous to other emergent properties (general processes & tendencies which arise) in the natural world.
These are system responses which are observable, but not entirely predictable because of random or chaotic elements.
Examples:
Economics, evolution, behavior of gases
Morality behaves much the same way in that we see general tendencies (aka emergent properties) which see variation on the micro & macro levels.
The Golden Rule, if you abide by it, only constrains your behavior. How is it "useful"? It isn't useful for getting you more money than you would get by not abiding by it, therefore it isn't useful for getting you laid more often. The lion you mentioned above had no use for the Golden Rule. If he had obeyed this rule, he wouldn't have had as much fun.
This is a very large issue.
"Useful" is that which serves survival.
For humans, we survive better if we strike a productive balance between cooperation & competition.
The Golden Rule allows us to do this with minimal social strife & loss of life & limb.
As for the lion's raping & mutilating the invading pride, this is their version of war.
Normally, lion prides will respect each other's territory, but starvation changed the rules.
If there's only enuf food for one to survive, they will fight because circumstances changed to make this more "useful" than respecting territory.
I want to know why. Again, to abide by moral precepts only constrains one's behavior. You win more games by cheating at poker.
I am the way I am because of genetics & environment.
Had I grown up in rural Afghanistan, I'd likely hold different values.
If winning at a single poker game were life's goal, then cheating would make sense....if one doesn't get caught.
But life is full of many activities, & if one is a cheater, one will be either beaten to a bloody pulp, or excluded from the game.
So playing honestly has its advantages.
And evolution likely selects for this trait.....generally.