It was not a Christian mind that excluded other people from the death of Jesus but the Jewish mind of the prophets Jeremiah and Ezekiel when they said that no one can die for the sins of another. (Jer. 31:30 and Ezek. 18:20)
You STILL cling to that feeble argument when it has been brought to your attention many times that those scriptures refer to
imperfect humans. Jesus Christ was not imperfect. He was
perfect and without sin. Therefore, he was the perfect candidate for balancing the action of "the first Adam," who plunged mankind into sin and death because of his disobedience.
The first Adam (an originally perfect man) and his disobedience is balanced on the scale of justice by the "last Adam, Jesus" (also a perfect man). This explains it all:
"Death reigned from Adam until Moses, even over those who had not sinned in the likeness of the offense of Adam [deliberately], who is
a type of him who was to come. But the free gift is not like the transgression. For if by the transgression of the one [Adam] the many died, much more did the grace of God and the gift by the grace of the one Man, Jesus Christ, abound
to the many. The gift is not like that which came through the one who sinned [Adam]; for on the one hand the judgment arose from one transgression resulting in condemnation, but on the other hand the free gift arose from many transgressions resulting in justification.
"For if by the transgression of the one, death reigned through the one, much more those who receive the abundance of grace and of the gift of righteousness will reign in LIFE through the One, Jesus Christ. So then as through one transgression there resulted condemnation to all men,
even so through one act of righteousness there resulted justification of life to all men.
"For as through the one man's disobedience the many were made sinners, even so
through the obedience of the One the many will be made righteous." (Romans 5:14-19, NASB)
And finally, to sum it up:
"A legal principle in God's Law is involved. 'Life should be given for life.' (Exodus 21:23; Deut.19:21) By his disobedience the perfect man Adam lost
perfect life on a paradise earth for himself and all his children. Jesus Christ gave his own
perfect life to buy back what Adam lost. Jesus 'gave himself a
corresponding ransom for all.' (I Timothy 2:5,6) Because he was a perfect man, even as Adam had been, Jesus is called 'the last Adam.' (I Corinthians 15:45)
"No other human besides Jesus could have provided the ransom. This is
because Jesus is the only man who ever lived that was equal to Adam as a perfect son of God. (Psalm 49:7; Luke 1:32; 3:38)"
(
You Can Live Forever in Paradise on Earth, p.62,63)