Of course I believe in imputed righteousness. But that is not what Romans 5 is about. Romans 6 is about imputed righteousness; Romans 5 is not. Besides there is nothing that "takes us out of Adam". In Adam is simply to be human. That doesn't change even for those of us who are in Christ and that is what Romans 7 is all about.
Romans is a letter. Ignore the chapters and verse numbers, and if you can get your preconceived notion of what those isolated verses mean in 5, see if you can come up with a better interpretation.
How exactly does that say that on the cross Jesus removed Adam's sin from everyone and we start over when we are born only being punished for our own sins after we sin? (And considering that we commit our first rebellion against God at a very early age, though it will manifest as rebellion against parents or tantrums for not getting our own way, or mistreating people or animals etc. when does God begin seeing our sins as sin. Age 3? 7? 10? 13? 21?
Ezekiel 18 is a prophecy to Israel about Israel. Jesus had not even been born yet, let alone gone to the cross.
You claim to be among the elect, and I believe you. But you are still in Adam; you are still human; you still sin. Your idea that the unelect are unable to not be disobedient is false. The High Calvinist idea that every single act, every thought of the unregenerate is disobedience is pure nonsense.
When did I say that the unelect are unable to not be disobedient? Do you mean the unregenerate are unable to be always obedient? When did I say that every single act, every thought of the unregenerate is disobedience? They are perfectly capable of doing things that agree with God. "Good" things. But don't forget it is God who says that even our righteous deeds are as filthy rags to Him. Why do you suppose that is? Because in Adam we are a sinner. Even our righteous deeds are for the wrong reason, and that reason being that they are purely self oriented, not God oriented. We do them because we have a desire that they will satisfy.
And you fail to see the right now, not yet, aspect of our salvation. Even though the believer is in Christ, and as such the power of our own sin and our inherited sin nature, has been defeated by Christ, that is, it can no longer condemn us, we still live in the flesh, the world, and the influence of the devil in the world. So of course we will still sin. We still have that nature, but it has no power over us to condemn. We are spiritually sealed in Christ and His righteousness credited to our account, while we await the fulness of our salvation when the corruptible (of the earth, the every meaning of Adam) puts on incorruption and the new heaven and the new earth are created.
That is dealing with the sins committed by each individual. It has nothing to do with Adam.
Uhhhh----yes it does. As you say we are still human, still in Adam in that respect.