That is a fallacy of modern intellectual construct. It has also be dubunked at great length by scholars…its a mute point St Roymond and it doesnt stand up to theological test against referenced scripture. We can go down this rabbit warren again if necessary but honestly, its a timewasting argument…up to you.
Let me simply illustrate using a single point that is highly problematic for such an argument:
Iin using your claim above, you make the statement that Genesis 1 is allegorical and that the death God warned Adam and Eve about should they eat of the tree in the middle of the garden, was not a physical death. yours is the claim it is spiritual death.
The issue is, scriptire simply does not support your claim of spiritual only death…
Christ (God) humbled himself taking on the form of his own creation (a man),
Was incarnate and live physcially among his own creation revealing the Father to us,
He was baptised phsycially,
He ministered physically,
He was tortured and crucified physically on the cross (atonement for the wages of sin is death which is also in fulfillment of the Old Testament Sanctuary service atonement service over thousands of years),
Then he physically rose again 3 days (parts of days actually) later, addressed doubting thomas with a statement of physcial touch to affirm He was alive…after he had already ascended into heaven to present Himself to the Father (again in fulfillment of the Old Testament Sanctuary Service)
Ministered physically to over 500 people for weeks after his ressurection,
He ascended physically into heaven.
If the death of Adam and Eve was spiritual…how do you reconcile that with physical atonement by Christ for the wages of sin is death?