The sin of Adam is not just in the members or cells of the body but within the heart of man. Out of the heart proceed these things... all the works of the flesh. .
But that's my own personal sins (transgressions). I am not guilty of Adam's sin unless I repeat it.
The problem is I was born with Adam's fallen nature and since I was born without God's Spirit in control of my mind and heart I naturally sin.
Christ was born spiritually alive. Meaning He was born with the Spirit in control of our fallen nature that He assumed at the incarnation.
As far as I'm concerned this topic is over, unless you stick to the context of Romans 6:6.....