I agree. In Hebrew, adam is a gender-neutral word that can refer to both men and women. This means that the original intent of the verse is not to say that God created only one man in His image, but that God created all of humankind in His image. As far as nephesh, it is a complex word with various meanings depending on the context. It can be translated as "soul," "life," "person," "self," or "creature."
Net....
Man- nephesh-soul
Animal-nephesh-creature
Blessings.
And one more comment. This is just how I interpret the passages.
I would say that Genesis 1 is referring to more people aside from Adam and Eve. Partly because Adam and Eve are not mentioned in Genesis 1 and comparable creation stories in the region involved God creating populations. Also when we read Genesis we see God creating the fish or saying what the fish swarm and let the birds fly, as if it's referring to entire populations. He set the stars in the sky, a population. So then when mankind comes along it doesn't say he created Adam and Eve rather I would interpret that as if God created a population, God created mankind in large quantity rather than just one or two people.
And then regarding dust, many people in the Bible are made of dust, so I'm not sure if this can be related to a scientific literal kind of material creation.
By the sweat of your brow you shall eat bread, until your return to the ground. For from it you were taken; for you are dust, and to dust you shall return.”
Genesis 3:19
I will make your descendants like the dust of the earth which, if anyone were able to count the dust of the earth, your descendants would be so counted.
Genesis 13:16
Then Abraham answered and said, “Look, please, I was bold to speak to my Lord, but I am dust and ashes.
Genesis 18:27
Your descendants shall be like the dust of the earth, and you will spread out to the west, and to the east, and to the north and to the south. And all the families of the earth will be blessed through you and through your descendants.
Genesis 28:14
Both go to one place—both came from dust and both return to dust.
Ecclesiastes 3:20
And the dust returns to the earth as it was, and the breath returns to God who gave it.
Ecclesiastes 12:7
How much more dwellers in clay houses, whose foundation is in the dust? They are crushed like a moth.
Job 4:19
Look, this is the joy of his way, and from dust others will spring up.
Job 8:19
Remember that you fashioned me like clay; and will you turn me to dust again?
Job 10:9
See, before God I am as you are; I too was formed from a piece of clay.
Job 33:6
all flesh would perish together, and humankind would return to dust.
Job 34:15
For he knows our frame. He remembers that we are dust.
Psalms 103:14
You hide your face, they are terrified. You take away their breath, they die and return to their dust.
Psalms 104:29
What we see is that in many places, the concept of dust is more of an adjective or description associated with the vulnerability, or mortality, of mankind. Not necessarily a concept associated with biochemical makeup of a human being.
Meaning that Genesis 2:7 probably isn't literal (and God doesn't have lungs to breathe literally anyway).
There are additional reasons to not assume that Adam and Eve were the first people.
So God created humankind in his image, in the likeness of God he created him, male and female he created them.
Genesis 1:27