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Our disagreement is essentially that I believe Christ's work a sufficient propitiation because of His nature and you because God punished Him with our punishment.
There is no "our" punishment versus the just punishment prescribed by law. There is no "sufficient" propitiation apart from "just" propitiation determined already by law. You view must resort to unbiblical rationalizations whereas the Biblical view has determined what is the just punishment determined law - "death."
I believe Christ being made sin refers to the substitutionary nature of His work while you believe it a legal status of actual (deserving of God's wrath).
No, you don't. There can be no "substitutionary" atonement if the substitute is not subject to the laws just penalty as part of the equation.
My observation has been that you are providing a context absent from Scripture itself. Your contention is that your theory is obvious throughout Scripture. My request is that you prove it instead of assuming it correct.
We have proved it over and over and over, but you simply refuse to accept the scriptures. The Bible over and over explicitly states it is the Father that is punishing Christ as a sacrificial offering for our sins.
It is the Father that "laid our sins" on him.
It is the Father that "chasten" him for our iniquities
It is the Father that must be "satisfied" with his suffering
It is the Father that forsook him on the cross.
You simply cannot understand and accept that he is both the obedient spotless lamb of God that was obedient unto death but in that obedience he was also the legal object of God's just wrath against us (not against him) for our sins.