I can understand evolution of a species. As an example, there are many different breeds of dogs and cats. Dogs have a common ancestor, so do cats...but they are all still basically cats and dogs.
Same for humans. Surely we have evolved to thrive in our geographic location (and other influences), but we have always been human. When God threw Adam and Eve from the garden, he clothed them in skins of animals - it makes a case for cro magnum man. (Did I say that right?)
But, humans have always been humans, regardless of their human evolution. A dog or a cat does not have an elephant as a common ancestor even though an elephant (or Woolley mammoth) has the same basic layout as a cat or a dog. The common ancestor to dog may be a wolf, the common ancestor to cat may be the saber tooth, but they are still dogs and cats.
It makes no sense to me that a human would have any common ancestor that is not human. Two arms two legs and a foul personality does not make a case for an ape and a human to have a common ancestor. Our only
common ancestors are Adam and Eve, regardless of where the atheist thinks they came from.
I have no idea where God came from. Not a clue. I do know that it is difficult for modern man to accept the premise of a God. It is a bit disconcerting to know there is an entity that created you, that you are only clay in the potters wheel.
As an example, there are many different breeds of dogs and cats.