So, if we were dead in sin before we were alive with God's gift of the new birth, as Paul says, was there a time between our conception and our coming alive to God that we were alive and then died again?? Of course, Paul says that we were all dead to God before he made us alive. Apparently, Jeremiah and John the Baptist came alive in their mother's wombs. God can do that too, but most of us were born dead, as I was, since God didn't save me until I was 16, 65 years ago.
I agree with the rest of your response. You're right that Calvinism doesn't save us, but as much as it agrees with the inspired Scriptures, it is biblical. It was the most-correct biblical interpretation I had found when I joined the Christian Reformed Church in 1962 when I was 20.
Before then, I was christened a Methodist, became a member of a church that preached neo-Orthodox or liberal sermons at the age of 12, and attended a cult for 1 1/2 years that dismissed biblical doctrines like the Trinity until I encountered Calvinism's best interpretation at college. Now, I'm a member of an independent church that preaches the Good News and is growing abundantly.
You did notice that as you say, salvation is God's gift of grace through faith. I agree completely, and so does Calvinism. But the result is God-empowered good works that God has always prepared for us to do (verse 10). Mine in my old-age retirement from church ministry is to spread God's gospel-seeds on Facebook, X, and with my books (growingtoknowGod.org). May God bless your ministry for him.