Jesus laid down his life to stop a religious war so no one on either side would fight and die.
His death removed no one's sin. The Jews saw themselves as innocent, so no Jew accepted Jesus as a sacrifice to remove their sins.
The true followers were already whole, having had their sins removed with water baptism needing no sacrifice.
Jews viewed Jesus as a criminal that was destroying their religion that needed to be killed.
Well that's new. Weird but new.
Jesus died to stop a religious war? That's nowhere in scripture.
"this Man, delivered over by the predetermined plan and foreknowledge of God, you nailed to a cross by the hands of godless men and put Him to death."
Why did he die again? Because God sent him to do just that.
Jesus said to her, “I am the resurrection and the life; he who believes in Me will live even if he dies,
So when He was raised from the dead, His disciples remembered that He said this; and they believed the Scripture and the word which Jesus had spoken.
He didn't die to stop any war.
His sacrificial death was prophesied in the Old Testament.
Surely he has borne our griefs
and carried our sorrows;
yet we esteemed him stricken,
smitten by God, and afflicted.
But he was pierced for our transgressions;
he was crushed for our iniquities;
upon him was the chastisement that brought us peace,
and with his wounds we are healed.
Isaiah 53