Mankind has no "free will" in spiritual matters. We are all born sinful and in a state of rebellion against God. If it were left to us, we would all reject God and His gift of salvation.
We do not choose God because our sinful nature prevents us from being able to choose Him. Like Jesus said, "You did not choose Me, I chose you."
We can do nothing toward our salvation. It has all been done by God through Christ. It is for us only to believe, and even our belief is given to us by God.
Since our sinful nature prevents us from "choosing' or "accepting" Christ, God has given Him to us as a gift as well as the gift of faith in order to believe. The only "choice" we have is to reject His gifts, to not believe.
Our salvation and faith in Christ is totally the work of God done to us and for us. Our damnation is totally our own work.