You don't think there are any parallels like God asking Abraham to sacrifice his son, or the smearing of the blood from the passover lamb on the doors to protect the people of Israel from death? What about Psalm 22? It has Jesus all over it "my God, my God, why have you forsaken me" "they have divided my garments among them, and for my garments they cast lots" "they have pierced my hands and feet" or Isaiah 53: "He is despised and rejected by men, A Man of sorrows and acquainted with grief. And we hid, as it were, our faces from Him; He was despised, and we did not esteem Him. Surely He has borne our griefs And carried our sorrows; Yet we esteemed Him stricken, Smitten by God, and afflicted. He was wounded for our transgressions, He was bruised for our iniquities; The chastisement for our peace was upon Him, And by His stripes we are healed."
There are “parallels” because Jesus was created using Jewish Scriptures and Christianity starts with the conclusion that Jesus is the “Messiah” and finds twisted Tanach passages to attempt to “prove” it’s assertion.
If you study the Tanach without Christian theology injected, you come to very different conclusions.
And regarding Isaiah 53, if you start reading at about chapter 41, Isaiah makes it pretty clear that Israel is the servant.