Calvin taught we are DEAD in sin, and need to be born again in order to receive belief. Scripture teaches we are alienated from God (think about the Prodigal Son) and doomed to eternal death unless we believe the promise of God in Christ Jesus.
Well, yes we are dead in sin in ourselves.
But where do you get your idea that Calvin said belief comes after being born again?
I don't know any Calvinist who believes this and I don't know where you got the idea.
Which is exactly what all reformers (including Calvin!) believed.
“Calvin taught we are DEAD in sin”
Sounds good!
Col 2:13 And you, being dead in your sins and the uncircumcision of your flesh, hath he quickened together with him, having forgiven you all trespasses;
Luk 9:60 Jesus said unto him, Let the dead bury their dead: but go thou and preach the kingdom of God.
Eph 2:1-2 And you hath he quickened, who were dead in trespasses and sins; (2) Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience: