You appear to be justifying morality as an eventual construct that arises as a species evolves.
Nope, there is no justification for what we call morality. It's just what we call the behaviors that have allowed us to cooperate.
As I read, once cooperation becomes favorable for survival, then that mandate to survive justifies creating these moral practices to foster that cooperation.
Pretty easy high school anthro and I hated that class.
Your position fundamentally misunderstands its own premise though. Survival itself is not a mandate from nature. It's not necessary. Approaching the universe from a humanist worldview, the universe existed for billions of years, devoid of all life. Nothing survived. Life, survival, was not and is not necessary to its function.
The question was and has never been what the universe wants as an uber scold. Primarily because the universe could give a chit squirt what we do on this dirt ball. What life does is spread. It follows its design as we follow our small part. While the universe could care less, life has imperative and that's why we have imperative. That the universe doesn't need life is unknown. We don't know if what sparked the bang was an intentional thermodynamic created by a race half our size. We don't know if the universe was seeded from the beginning or life chanced together on its own three minutes after the giant bang. And for the most part I don't care.
Nor does life appear to be a goal of the universe. The idea of a goal itself contemplates some Thing mandating it, but ignoring that inconsistency, if the universe is said to have a purpose or goal, life and survival do not appear to be it. At every turn, the universe is trying to kill us and all other life on this planet, and it does so with amazing efficiency. At some point in the distant future, this planet will most certainly be completely destroyed, if not by some foreign body hurdling toward it, then by the Sun turning into a red giant and engulfing the planet after boiling away the water and atmosphere.
So what? We have a moment and then we are gone. We can try to flee to other stars but we won't, we can't. Cooperation keeps us here because we like our tidy homes and 600 thread count sheets. Are we supposed to do more than we do? Who cares? For all either of us know life is just rust on a stellar scale. Perhaps the long game for life is to escape this universe and move on to the next one or back to the last. We can't know. Overlaying the belief that because things die, means life doesn't matter, is presuming a great deal. Even if our small segment matters very little.
Your worldview though hoists survival up as the reason why morality exists. Survival is necessary, cooperation enhances survival, morality fosters cooperation, therefore survival begat morality.
The problem is that you see morality and survival as different things. I don't. The path is not linear. It's nested.
That's why when I see Maslows Hierarchy of Need I always crack up. There isn't a more humanistic idea cobbled together ever.
You don't arrive at cooperation or morality and stay. You survive or not. Nothing and no one cares along the way.
This is not true, though. Survival isn't necessary. What drives us is the want or desire to survive. We don't have to survive. We want to survive. It is want or desire that your worldview is based upon.
Who says survival is a requirement? Not me. Natural selection killed all the people that didn't have fear. They all jumped off a high cliff because they wanted see what it was like. It also killed the folks that wanted to try cooperation over survival. They were eaten. It even killed the Shakers. If you want to lead a moral life and your morality doesn't allow you to make babies.... Your community dies pretty quick. Each of the above wanted something, but they didn't survive. Life goes on.
When we strip away the fluff and self-serving language, your theory of morality is reduced to this: morality exists and is defined by what we want. Under your theory, the "want" which shapes morality is the "want" to survive.
Nope. My theory is much simpler. Morality is a mental construct that is as temporary and fleeting as our species is on this planet. What we want doesn't matter. How we are built by natural selection doesn't matter. We can build morals to fit the day, fulfill our biological imperative or just survive and dispense with the niceties. Either way the imperative is answered. The former allows us to be opportunistic within a community. The latter can be that or much much less.
But this desire isn't universal. People want different things, and they don't necessarily want to survive. Or, they may want to survive, but also fulfill some other wants like sex, revenge, and wealth which they can fulfill through rape, murder, and theft.
Because folks don't desire the same things doesn't mean that they aren't all the same. They are all the same because they all desire.
IMO who cares what people want or think they need? I don't, primarily because all people are tuned to react to the situation they are in. You live in Sudan and see a guy with a gun? You run away. Hungry? You eat. Thirsty? Drink. Everything else? People will react to the situation they are in and not one iota differently. It doesn't matter because over the long haul because as a species we don't matter. As you said the universe doesn't care. If the universe doesn't, why should I?
And that's what your worldview is left with: want. Strip away the superfluous, feel-good language meant to make it more palatable, and all you're left with is a selfishness that you've restyled in a benevolent manner so you can type it without your own fingers cringing.
Long run, short slide. Want isn't anything more than another manifestation of survival.
The issue that you are having is that you think that I'm actually positing that we're here for a reason that somehow it means something. Well, it might somewhere in some cosmic or alien log book. But on the ground we're still grubbing for food and water. We're animals that think we are more. That's why Maslow is so wrong. We believe we want while we can, but every desire and temporary feeling of fulfillment is channelled survival instinct delivered to us by natural selection. We just can't outrun our past.
As to being selfish? Just like everyone else I'm looking for the GI Joe with the Kung Fu grip.
All this for a bowl of borscht.