Genesis being the foundation for the entire Bible, with Jesus acknowledging His part in creation, discrediting the Biblical account of creation means that God/Jesus are liars, that God is not a supernatural being, and that God doesn't know the meaning of the phrase 'evening and morning', and 'it was good'. Adam was created an adult, just as the universe was created 'with age'.
Those that prefer to believe that their existence is due to some chance is welcome to continue to do so, but I believe that God created us for a reason.
Agreed, creation isn't just in the first few pages, it's all over the Word.
I think the problem is simply the fact that we don't fully understand the dimension we call time. We see through a glass darkly in many ways.