Why did God sacrifice Jesus Christ for our sins?

People often ask how it is possible for God to crucify Jesus Christ in order to atone for the sins of humanity.
First of all, it is important to understand that God does not kill someone to forgive someone. Rather, the message of the Gospel is that the Creator and Lord of this world, out of His great love, sent His Word into the world in human form to pay the entire debt of human sin. What is the debt of sin? Man is indebted to death because of sin. All humans are under the penalty of death because of sin. The Bible clearly states,

The one who sins is the one who will die. (Ezekiel 18:4)

So is there anyone who has not committed a single sin? God knows that no one is completely innocent and can go to heaven because of their innocence. And no one can pay off their sin debt on their own. No matter how many times a person tries to pay off the debt of just one sin, they will still commit another sin. This means that the person is now in a situation where they will never be free from the debt of sin. So the only being who can pay the debt of sin for all people is God Himself. That is why God chose to send His Word, Jesus Christ, who was holy, sinless, and perfect, to pay off all our sin debt. Since, the debt of sin is death, for this reason Jesus Christ was sacrificed in our place to save us from the wrath and anger of God and to give us eternal salvation from death and sin.
So, should we now accept this grace of God with gratitude, or should we question and criticize it? God, out of His love, did for us something that we were incapable of doing to save ourselves from the punishment of the Hereafter.