Well the cosmological argument either falls victim to the problem of infinite regression or comits the special pleading fallacy but putting that aside for a moment what makes any god(s) moral judgements/pronouncements more than some god(s) subjective personal opinion?
Why does it fall victim to infinite regression? I believe the universe had a beginning. With a beginning, you can only go back so far. How does the universe begin and why does it begin?
Only if the argument was for an infinite universe would the causal chain be infinite, which begs how we arrive at the present. One thing about special pleading, you are just as guilty of doing it because your argument is not logical without a necessary reasoning being capable of creating the universe. It begs the question of without such a being why these things are possible and why we find reasons.
I'm not one for the 'gods' theory.
One definition of God is the greatest possible being. The biblical God is a personal being. One attribute of this God is as an omniscient being, that is a being who knows all things. Other attributes are that He eternally exists, His goodness, justice, and logic. So we have the ingredients for what is necessary for absolutes, objectivity (knowing all things) and universality (applies to all people of all times), eternality (exists with no beginning and no end), transcendent (exists outside the order of His creation), and immutability (His attributes do not change). Add to these qualities benevolence (chooses what is good and is good), justice (punishes evil or what is wrong), logic ( so He doesn't contradict Himself) and truthfulness (He does not lie).
There are sense and sensibility to be had from such a worldview because it has the conditions necessary for such conditions to be met when we examine our existence and the universe.
Now we approach the atheistic, secular human god of chance happenstance, random chance mutations, and evolution; basically matter, plus energy over time forming all that is. Inorganic lifeless matter somehow produces conscious being along the chain of events. What is logical about any of this?
You have none of the ingredients you find and witness with living, conscious, rational, personal, logical beings being present at/in the grand design - the Big Bang, or whatever other theory of the universe you choose to believe in. Scientists via for the hearts and minds of their subjects - other limited rational beings who are at the mercy of these other limited experts in making sense of all of this). And one scientist builds a paradigm that differs from that of another scientist. They compete for your affection in liking their idea over others. They cash in on bazaar theories that earn them millions of dollars. They become celebrities. We idolize them. They become the highest authorities on such matters, even if they are like the average Joe on other matters and just as much in the dark about morals.
Yet from such a universe, from chance happenstance, why would you expect to find what you witness and live in? Why does this universe materialize these things somehow, anyhow, anyway, and yet you say it does? And there is no intent, no purpose to it doing so, yet you find intent and purpose.
Then there is the problem of how such a universe sustains these interrelated functions that life depends on, for no reason - it just does and it just is.
These laws we discover describe how things work. We are able to identify them by forming equations that describe them. There are a pattern and logical order to them.
The question is, why would you EXPECT to find reasons from such a universe, yet you do in everything you examine. In a chance universe, why are there laws that function and are necessary to function in a particular way for us to exist? There is no reason in such a universe, but they do.
Preference describe things we like or dislike, thus they are subjective to the individual and describe what he likes. They tell us the way things are for him, not what they ought to be.
Moral laws prescribe what is right or wrong and they should apply to everyone equally. It is not a choice that you make right because you like it.
How do we get a moral law from a subjective preference, a descriptive?
In a universe devoid of God we would derive moral laws from behaviors and what is - the descriptive. The universe is what is. It makes n sense of what ought to be, neither do preferential choices.