In a world in which most religions begin with God the Father or some sort of male image of the divine, and are founded by male figures such as Moses, Buddha, Jesus and Muhammad, do we undervalue Motherhood or the role of women in faith?

Yes, we undervalue the feminine side. This has changed slowly over the years. Perhaps a straightforward starting point for understanding would be to acknowledge the mysterious, unlimited nature of the Divine, beyond all narrowing down to human traits that we tend to impose, including gender stereotypes.