I hope being new I'm not out of line here but I do have an idea on this. Genesis says man became a living soul but doesn't say what sex that soul is.
The Lord said God is the Father and "he" and such. So even though God has no physical sex as a Spirit, he is still a male Spirit.
David said in Psalm 34:2 My soul shall make HER boast in the Lord: the humble shall hear and be glad.
I tend to believe that since the entire word of God bears witness to Christ Jesus being the man and the husband to the church, or woman we look too much on outward sex and not the unseen spiritual things.
With this in mind I tend to see both male and female having a female soul as the bride of Christ, the male Spirit.
Who knows, maybe man's ego will be the god before our Lord that hinders him. I tend to see MtF transgenders as being very blessed with a female soul and spirit and no male ego to get in the way.
I hope I'm not out of line here being new but I feel we are blessed by looking on the unseen rather than being hung up on that which is seen. I personally enjoy being a girl and his betrothed.
Tiffany