Who should have died? God the Father or God the Son?

[GreatestIam]

Who should have died? God the Father or God the Son?

John 3:35
The Father loveth the Son, and hath given all things into his hand.

John 5:19
Then answered Jesus and said unto them, Verily, verily, I say unto you, The Son can do nothing of himself, but what he seeth the Father do: for what things soever he doeth, these also doeth the Son likewise.

In our human world, it is custom for fathers to readily die for their children.
Given the choice, I do not know of any man that would not willingly save his son’s life by giving up his own. After all, we live for our children.
We often say that the sons should bury the fathers and consider it a great breach of the norm and an injustice for fathers to have to bury their sons.

If, on earth as it is in heaven has any meaningful truth to it, should God the Father not be the one to willingly die for His son?

If God is to be our example, are most of us ignoring His example and in that way breaking the first commandment by putting our own desires over His and thus placing some other idea above Him?

Regards
DL