Yes it was serious. For God to have a Son. It would require a female of the God species. It’s called biology not magic.
Because there is no such thing as magic.
Simply put, YOU are narrowing YOUR mind so that God can fit into YOUR understanding. “It would require...” You base your assumptions about God based on what you know. In this view, God must fit your (my, anyone’s) finite understanding. If that is all God is, then HE is no God.
Or is He someone Who asks us to “lean not on our own understanding” when it comes to who He is? Is God someone who “surpasses knowldedge”? Does He in fact stoop down awfully low just to reveal the little bits of him our own finite, limited, narrow minds can grasp? The scriptures say as much. And then, when we get OUR minds around the fact that HE is God and WE are not, then OUR understanding, OUR knowledge becomes less important and finding out who God is becomes the goal.
There’s really no magic to it at all.
Jer. 29:13