However, I don't think that we can dismiss the idea of two "wives" of Adam simply as a figment of our literalist imaginations. God created mankind from the dust of the earth, he created us male and female. LATER in Genesis, God sees that Adam needs a helpmate and He creates Eve out of Adam's rib. We all have our various ideas regarding hermeneutics. I don't think that we can dismiss the idea of two "wives" out of hand.
The Old Testament mentions only one wife of Adam: Eve.
Remember that Jesus is the Second Adam. He has only one wife, the Church. Does He have another?
Furthermore, we also need to remember that the second Creation Myth is the basis of the Holiness Code. The first Creation Myth is both the more ancient and, especially for Christians, the more significant, for men and women are equal in Christ. Both men and women are in God's Image and Likeness. The Hebrew uses Adam. When we apply the above information, then we see how significant the meaning here between St. Paul's words and the theology of Genesis 1.
That isn't to say Genesis 2 is useless, but we need to read it in the proper context. Women were regarded as lesser, and Genesis 2 allows such a view (Genesis 1 makes them EQUAL!). That is why in the holiness/ritual laws women were treated as inferiors.
As Christians, we have a special relationship with the New Testament. We have spent centuries developing doctrines based on vague clues in Scripture (certainly this was true for the early centuries). Jews have a special relationship with the Torah and have spent thousands of years interpreting every word and letter of the five books of Moses. Surely the idea of two wives has more scriptural support than many of the ideas of some modern day Christian groups.
Not all Jews accept Kabalah (I'd argue most don't). It is, in some respects, their own version of Demonology, and was later largely shaped by Gnosticism and Christian demonology as well. Furthermore, not being Jewish, I see no value in it for my own religious beliefs.
I'm saying the OT is void or "inferior," but that we should be mindful in how we interpret it. As Christians, we believe that our interpretation is right. Otherwise, we'd be Jews if we agreed with them! That isn't to suggest we don't agree; on most things we probably do, and I'd wager Lilith is one of them.