This is almost like one of those time travel conundrums where someone goes back in time and kills his grandfather. Therefore the time traveler could never be born and therefore how could he go back in time and kill his grandfather? These are invented scenarios that could never actually happen in reality and so we cannot really discuss them in any meaningful way.
Anyone can make up imaginary senarios and then demand others explain. It is kind of like saying if the sun was made of stone then how could it shine. It would not. But it is not made of stone, it does shine- so what is the point?
Also, just because God knew what our choices would be... than does not affect what choices we make. There is no relation between the two.
Finally, this is what happens to people who hold to the "mere theism" teachings "omni factors" such as omnipotence, omniscience, super sovereignty, etc etc. While debating people who are anti-Wof, I find that they inevitability resort to these "omni factors" to put down faith teaching. WoF teaches that we can ask and believe for whatever we can believe for, and that God will do it. The anti-faith people will inevitably state that we are denying God His sovereignty and are ordering God around. Yet we are only taking God at His Word. They are overruling the words of Jesus with their omni-factors. Essentially they overrule the gospel, Jesus,and the word with these omni-concepts.
We believe that Jesus, not the omni factors, are the true revelation of the Father and His will.
