The real problem as usual is that you do not understand Calvinism. We call it the perseverance of the Saints. I think Once Born again always born again would be a better way of saying it.he main problem with calvinism doctrinally is OSAS
1Jn 5:18 We know that whoever is born of God does not sin; but he who has been born of God keeps himself, and the wicked one does not touch him.
Jude 24 Now to Him who is able to keep you from stumbling, and to make you stand in the presence of His glory blameless with great joy,
It's not "once make a profession and you are saved forever," it is being born of God and being made to stand.
Tell us what is or was God's purpose in Creation?and lack of understanding of Gods soverign purpose in creation which they partly do not yet understand