Why do you believe that man is free when Scripture says he is a slave to sin? Nobody but MAN keeps him from God. Not God. Not the church. Man's own evil will keeps him from turning to God.
Man is free. Nothing stops him from choosing. In his ignorance, he chooses that which satisfies carnal desires. But he also chooses that which makes him feel good spiritually.
Stop for a moment and think: who made us carnal? The same Creator who made us rational. Unless we assume the responsibility for our "slavery" who will? Certainly we didn't make ourselves carnal, or rational! We didn't enslave ourselves. It's like keeping yourself a prisoner. It's an oxymoron. But, did God?
God knew how we will turn out, so the only way that God cannot be blamed for our evil is if He gives us reason and freedom to choose. Otherwise, our decisions are not ours, but His.
God wrote the book. Whatever happens in that book, whatever course of action the characters take is up to the fancy of the author, and none of their doing. We are just characters in the book, doing whatever the author wants us to do! If the author wants to give us free choice, we will have free choice and our decisions will be ours, for better or for worse. If we are enslaved, who is the Enslaver? The one who is in charge, the author! Denying freedom to man is shifting blame to God. That would make God evil.
For if we are not free, we are not responsible for our evil choices.
If we are not responsible for our evil choices, we are not guilty.
If we are not guilty, we didn't transgress.
If we didn't transgress, we are innocent.
If we are innocent, we don't need redemption and the Redeemer.
The only way that we can be held accountable, guilty and offered redemption is if we are free and capable of making the right decisions but choose the wrong ones.
Obviously, we don't hold our children accountable, even if they cause harm to others, because they cannot use their faculty of reason fully. Instead, they react carnally and impulsively. If the mind is not dominant, flesh predominates. But flesh is innocence.
Animals are flesh. When animals kill, they are not guilty. If children kill, they are not guilty either. They are not free to make decisions. Someone has to make those decisions for them. A fully developed human being is equipped with reason and freedom top choose. Ultimately, our condemnation is our own doing as much as our salvation is God's mercy.