God is sovereign in that He works, but man must respond or there is no salvation. Some for salvation and not others. It is His choice alone. These selections have nothing directly to do with destinies, but certain purposes that God will accomplish. Jesus, Judas or Jacob were not chosen to be saved or lost, but to accomplish certain divine purposes. .
Predestination has to do with saved people only.
They say, that, otherwise, He would have died in vain. We must not limit His sacrifice to dealing with the sin of man alone. It was not me, you or the world only that He was dealing with at the cross. The word in Heb. That this grace and God's offer can be resisted can be clearly seen in many scriptures.