You are saying this means man must have at one time possessed a mythical "spiritual life" that was temporary (not "in Christ").
Jon, is the state of being "spiritual dead" due to sin? Is this form of deadness part of "death" that entered the world by one man's sin and was passed upon all men?
If not, then how can God justly subject us to this state of spiritual deadness from conception? If it does not originate with us, with Adam, with Adam's sin, with death that entered the world then how can we be justly subjected to it?
If it does originate with Adam and his sin, and is part of "death" that entered into the world because of his sin then did not it originate with Adam and his sin? If so, did not he experience spiritual death because prior to his sin there was no death which had relationship to sin. If he did not experience spiritual death when he sinned, then is he the only human being that became a sinner without being "spiritually dead"? If so, then he did not need rebirth since he had never been "dead in sin" and therefore is OUTSIDE of Christ and in hell today, UNLESS there is eternal life/salvation outside of Christ? Which is jon?