regardless of literal versus allegorical interpretation,
there are certain concepts that are essential to the Christian faith in Genesis.
One of these is the effect of sin, what the world was like before sin (”Very Good”, no death, disease, predation, every creature a vegetarian), and what happened after the Fall, requiring the Savior.
So, if “allegory” is the answer in order to
***conform the Bible to Man’s interpretation***
of his observations of nature,
then these specifics are to be dismissed?
You have to dismiss the “very good” description of creation in order for the “God used evolution” assertion.
And you would also have to assume that God is not omniscient to conclude that "very good" was intended to apply only to the pre-fall creation. (Indeed, one of the conundrums of Genesis is its depiction of a contrarian and oddly limited God, who was, for example, unaware of the location of Adam and Eve after they succumbed to the temptation that He had orchestrated for them.)