Specifically it says we all die because we all sin, but there is nothing about inheritance in those verses.
I agree that sin entered into the world through Eve, and then Adam, and that all men since have sinned. I also agree that death in this world is the indirect result of Adam's sin and the direct result of God's curse on the world. Death is general and pertains to all living things. If you are going to assume the man's death is a result of the nature they inherit from Adam, because of his sin, you must come to the stange conclusion that the animals also are Adams descendents, because they also die. Actually, what we inherit is life, but because we are part of the cursed world (here the word 'depraved' may be used correctly, meaning corrupted from its original physical nature). Everything in the world grows old and dies, including the world itself.
Rom 8:21-23 Because the creature itself also shall be delivered from the bondage of corruption into the glorious liberty of the children of God. For we know that the whole creation groaneth and travaileth in pain together until now. And not only they, but ourselves also, which have the firstfruits of the Spirit, even we ourselves groan within ourselves, waiting for the adoption, to wit, the redemption of our body.
Psalms 102:25&26 Of old hast thou laid the foundation of the earth: and the heavens are the work of thy hands. They shall perish, but thou shalt endure: yea, all of them shall wax old like a garment; as a vesture shalt thou change them, and they shall be changed.
Romans 5 is not a good choice if you want to defend Calvinism, however, especially with me. Please see my post #234.
By the way, I do appreciate your arguments and comments, and the reasonable way you present them. It is nice to find those we can disagree with without being disagreeable.
Thanks! Hank