Do you seriously believe that some sort of cosmic entity can appear from nowhere? Or that this entity existed infinitely? If you're prepared to believe that without any supporting evidence, you may as well skip the unnecessary complication and consider that the Universe always existed in some form or another.
But in terms of evolution, it's a slightly more complicated and lengthier process than simply "mutating an amoeba into a human." Plus, it has the added benefit of over a hundred years of investigation and research to support it. They're still coming up empty trying to make "god" into a testable hypothesis after thousands of years.



