I bought a good book recently .. Soteriology Simplified by Dr. Bob Hadley. It has a very good job of disemboweling Calvinism. It begins by pointing out that the central concept of Calvinism is the total sovereignty of God. "Calvin took this theme and made it the foundation upon which all the other themes were to be centered or referenced." Ergo, nothing that man thinks, believes, or does is his own thinking, believing, or doing. To quote out late Pres (somewhat), "You didn't have those thoughts, beliefs, and acts .. God gave them to you." Even the thoughts, beliefs, and acts of Satan are not his own but of God using him as an intermediary to accomplish His will.
Second, the doctrine of total depravity of man and, therefore regeneration, is the chief cornerstone upon which the Doctrines of Grace stand. Salvation relies not on the death, burial, and resurrection of Jesus Christ nor on personal faith (since it cannot exist if God is totally sovereign) but on God's sovereign regeneration. "If the doctrine of total depravity fails, then the remaining four doctrines of grace fall with it like a house of cards. If Calvinism is correct in its contention that regeneration is the catalyst for repentance and believing faith, then revelation [the gospel] cannot be." Therefore, Ro 1:16 cannot be true "For the gospel is the power of God unto salvation to everyone who believes"
And it doesn't take a genius to see that if man is totally depraved, then election must be unconditional .. atonement must be limited .. grace has to be irresistible .. and only God can preserve the saint (OSAS).
I'd say he "nailed it."