Behold all souls are mine

Ezekiel 18:1-32
Behold all souls are mine: the soul who sins shall die.
The son shell not suffer for the iniquity of the Father, nor the father suffer for the iniquity of the son.
Is it not your ways that are not just?
Cast away from you all the transgressions that you have committed, and make yourselves a new heart and a new spirit! Why will you die?
Why?
Every soul is independent to the Lord, everyone has to take responsibility to his deed.
Is the God not just? Usually we has the rule of ourselves, the just of the Lord is absolute.  If a wicked person turn away from the wickedness he has committed and does what is just and right. He shell not die. Inverse, a righteousness turn to wicked and does injustice, he shell die.
The Lord knows that depends on our own strength and the commandments, we can't be atonement. He gives us a new heart and new spirit, for He loves us.
Israelite has this mind because they though their suffering were caused by the forefather's sins.
How?
All souls are belongs to God, so we have to do the right thing for our soul. No other's fault, it is our obligation.