Jesus was not born to die in order to save sinful Mankind from Eternal Annihilation but to save sinful Man from Eternal Damnation - The doctrine of annihilation would be great news for the sinner who does not want to repent but it is false news because it's a false doctrine - If it was true, but it's not, annihilation would be good news for the sinner who refuses to repent but this is not Bible, that's doctrines taught by demons, Jesus already purchased our freedom from the wrath of God, from the great white Throne judgment and from the Lake of fire but this was all done positionally meaning it has to be received by faith and if it's not received by faith then those individuals have to pay for it for themselves which will take an eternity because of the gravity of sin, the debt and the consequences of sin
