Predestination is Biblical? Then we’re all doomed. What do we need Yashua for?
Yes, it is Biblical.
Ephesians 1:4 For he chose us in him before the creation of the world to be holy and blameless in his sight. In love
5 he predestined us for adoption to sonship through Jesus Christ, in accordance with his pleasure and will—
Romans 8: 29 For those God foreknew he also predestined to be conformed to the image of his Son, that he might be the firstborn among many brothers and sisters.
30 And those he predestined, he also called; those he called, he also justified; those he justified, he also glorified.
You're right, we are all doomed! Were it not for His calling some of us out, we would all be cast into the Lake of Fire.
John 3: 18 Whoever believes in him is not condemned, but whoever does not believe stands condemned already because they have not believed in the name of God’s one and only Son.