Since. By very definition, "God" is omniscient (all-knowing), otherwise that is not "God", but something else.
Yes. That is what "God" is by very definition. It is what scripture also says (Isa. 46:9-10, &c.)
, including all of the choices we will make in this life,
Yes. That is part of the definition of omniscient, or all-knowing.
he already knows who will be saved and who will be damned.
Yes. That is part of the definition of omniscient, or all-knowing.
Not only do we not have freewill,
Logical fallacy. You had some good premises, but the conclusion is skewed away from the logical steps previously taken. Knowing is not making the choosing. Knowing and choice are two differing things. The Person / Being of God and the person / being of the individual making a choice are two differing things. You have some category error as well.
- Person / Being "A" (Alpha) - God sets providence (options, "x", "y") before
- person / being "b" (beta) - they are able to freely choose, from those providences ("x", "y") set by God ("A") (there is no "z" option set by God's providences in this scenario)
- Person "A" knows (already, in advance) what person "b" will choose from among those providences ("x", "y"), knowing that person "b" will choose "x", rather than "y". Consequences / results follow from either choice. Cause to effect. Person "b" does not ever know (in this scenario) in advance what they are going to choose from among the providences of Person "A", until the very moment of their finalized choice / choosing. It is only then that they know their choice is "x". and not "y". Person "A" did not make them (person "b") choose "x" by simply knowing in advance. Knowing the result, does not negate the freedom of the opportunity up to the moment of the choosing / decision. They had been free to choose up to the moment of their choice, which afterward sealed (forever) the result that would follow, which God had already known of.
Think of it like this.
I have a video tape (VHS, old I know), of a football game, that I sat and watched and know all of the ins and outs of the decisions made by those in the game. I then allow another to watch this video with me. I know everything on that tape, from beginning to ending. The other person sitting next to me watching it, does not. Even if I had told them the ending, before they had finished, does that negate the individual choices that were made during the game itself? No. The knowledge (the record) of the results is not the choosing between options that ended in the results / record. It is not that those on the video tape could not choose otherwise than they had chosen, for all the options were present at each moment before their decisions were made / sealed, and once sealed, those options are now no longer available. The tape is simply the finalization of those collective choices (a record, a knowledge of those events), that are now sealed, and cannot be unchosen. They must bear the consequences / results of their own choices as recorded on the tape.
You are conflating the matter of after choosing, with before choosing. The sealed choice, does not negate the options present, and the ability to choose, up to the moment of choosing. Knowing in advance doesn't either. Knowing in advance simply knows what was chosen, what options were accepted and what options were rejected in finality.
There is no time-travel to undo a choice made. A person cannot 'change the choice' once that choices options are sealed by deciding and accepting the consequences of the choices made. New choices might be given though.
but we are also pre-judged even before we are born.
The world in general is condemned, yes. It cannot be otherwise. God is a ruler, and there is an eternal law, which law is love, and violation of such, brings separation from God, whom, is love and life. Therefore, separation from God brings only death, since apart from God there is no life.
In the beginning, Adam/Eve was/were given a choice. Adam/Eve ended up sinning, violating the law. Thus death was to come upon him/them, and since he (Adam) was the head of humanity, and he had no children, thus all mankind (genetically in him) would die with him because of it.
Each person (except Jesus), after Adam, has also sinned (in their own mistakes), and thus should die for their own.
The only reason any humanity, from Adam to you and me, are alive, is because of Jesus. Why focus only on the condemnation (which is just), and not the way out of the predicament of eternal death, by accepting a gracious offer to live?
A free man, who was innocent, takes a weapon and kills another man in cold blood. It is murder. The man is now condemned to die, and sentenced and is in jail awaiting execution. Lo and behold, there is a pardon issued by a judge. What choice will you choose? Remain on death row for the crime and be hanged, or take the offer and live a new life? You act like you have done nothing to deserve death. All mankind has done so. You act like you do not belong on death row. That is to admit that you are not accepting of your own crimes, and think your judgment better than that of the judge and the law itself. That is not going to get you anywhere any more than a real murderer, who refuses to admit their crimes. Sit down and think on your life. Read Exodus 20:1-17. Was it a selfless life or selfish one? If you had to sit in judgment of that life, and not think of it as your own, what would you honestly rule? Instead, think on the real judge and the real pardon being offered. The consequences are going to happen, no matter which choice you decide. Cause to effect. Sowing to reaping.