I don’t think the Bible is outdated because I don’t believe the Bible is meant to be followed literally. Its historical content shows how human beings have evolved under the concept of a higher power, God.
We read in Galatians, written thousands of years after Moses and the Exodus, “There is neither Jew nor Greek, there is neither slave nor free, there is no male and female, for you are all one in Christ Jesus.” (Gal. 3:28)
We are not one in the person Jesus, but one with the Christ spirit, the image of God. We are equal and capable of knowing equality.