I didn't say anything about freewill. I said choices. And the verse does indeed say God determined that Jesus would be delivered up. He even determined it would be on the cross. When the fulness of time came...this means when God determined...Jesus was sent forth to be born. God orchestrated it all, but also employed the choices men made. This is what the verse teaches.
In order to have choices you have to have free will, otherwise you are back to saying God has puppets and He is the puppet-master, but you have already conceded this point. The part of the verse that says “Him, being delivered by the determined purpose and foreknowledge of God…” as well as the verse you alluded to in Galatians, does not, in any way shape or form mean that God was or is responsible for the murder of Jesus. What the verse is teaching is God planned the plan of how to be saved from sin, but not the sinful, murderous actions of man. Those are two very big different things.
For your view of Acts 2:23 to be correct, Peter would need to have said “you and God have taken by lawless hands, have crucified, and put to death” but he didn’t. And if God was responsible for that, then would He not be responsible for murder? To even think that is appalling, as murder directly contradicts with His nature (1 John 1:5; Ps. 5:4)
Furthermore, Jesus Himself said “Therefore My Father loves Me, because I lay down My life that I may take it again. “No one takes it from Me, but I lay it down of Myself. I have power to lay it down, and I have power to take it again. This command I have received from My Father.” (Jn. 10:17-18)
For your view of Acts 2:23 to be correct, Jesus would have needed to say in those verses in John 10:17-18 “Therefore My Father loves Me, because he has taking my life that I may take it again. No one takes it from Me, but my Father.” But He did not say that.
Jesus also said “Greater love has no one than this, than to lay down one’s life for his friends” (Jn. 15:13).
For your view of Acts 2:23 to be correct, Jesus should have said “Greater love has no one than this, than my Father to lay down my life and take it from His friends.”
Paul said “who [speaking of Jesus] gave Himself for us…” (Titus 2:14)
For your view of Acts 2:23 to be correct, Paul should have said “who gave Himself for us to be murdered by the Jews, Romans and His Father” but Paul didn’t say that.
Those verses above teach the Father didn’t take Jesus’ life, rather, Jesus laid down His life voluntarily out of love.
Your understanding of Acts 2:23 is incorrect.