Don't get me wrong, I'm really glad that Herod didn't murder Him as a baby let alone the fact that He was the Son of God, but a helpless little infant at the same time,.. but since Jesus was sinless would we still have our salvation if He died in some other way other than the cross before it was His time to?
You are attempting to "Hypothesize" away the effect that Christ had on humanity by suggesting that the God of Creation failed what had been planned before the world was even created? (1 Peter 1:20, 2 Tim. 1:9) God had planned and established a method for the salvation of man "before time began". We are told that this plan was hidden from mankind for a while until the correct time period when God revealed that plan through the Holy Spirit to the apostles of Christ.
Look around. What was and is the result of God's plan to use the birth, life, death, and resurrection of His only begotten
Son as the ultimate blood sacrifice?
The life of Christ revealed the "sacredness" of all human life. Jesus respected the poor and healed the sick in an age where the poor and the sick were nothing but outcasts of human society. It was the very teaching of Jesus that eventually led to the overthrow of slavery and revealed the truth, "all men are created equal".
Jesus taught us the value of a human soul, "A man's life is not measured in the abundance of his possessions (Luke 12:15). He pointed out that "spiritual wellbeing" is sometimes more important than physical concerns (overcoming many mental hygiene concerns) a method to overcome the many hardships that all mankind faces along this path called life. -- Matt. 6:9-11.
What about women's rights? Until Jesus came to earth women were treated as nothing more than the property of men......Jesus taught, "There is neither male nor female..........." revealing the equality of the genders.
Jesus taught us that salvation was not reserved for just a few supposed superior religions. He taught of the "Good Samaritans" that were sometimes more noble than the supposed exalted Jews. Peter reveals this same truth through the inspiration of the Holy Spirit, "Of a truth I perceive, God is no respecter of person: But in every nation he that feareth Him, and worketh righteousness, is acceptable to Him." -- Acts 10:34,35
Jesus taught of the Fatherhood of God in the story of the "Prodigal Son" where Jesus pictures Father God as a loving caring Father yearning for the return of wayward mankind to His embrace. (Luke 15)
Jesus established a plan for all mankind to live a righteous life through the revelations found in scripture. It is the perfect standard for man to live by as found in the Sermon on the Mount. If you follow this advise, "Ye therefore shall be perfect, as your heavenly Father is perfect," -- Matt. 5:48. Not meaning that we are perfect but when we seek perfection we will engage in righteous living, and when we slip, we have an advocate standing between God and our sins. Jesus the Christ.
Jesus taught that we do not require some 3rd person that requires a confessing of our sins, we can approach the throne of God, "For we have not a high priest which cannot be touched with the feelings of our infirmities, but one that has in all points been tempted like we are, yet without sin." -- Heb. 4:15. Pointing out that a man that sins himself has no authority to stand as advocate been our sins and God. Only God can forgive sin. (Mark 2:1-11)
Jesus allows us to fear death no more, but to accept our place as is appointed to die but once. "Death is swallowed up in victory. O death! where is thy victory? O death where is thy sting?" -- 1 Cor. 15:44,45
Most importantly, Jesus has taught us of the eternal hope that we can have in our hearts, "Let not your heart be troubled; believe in God, believe also in Me. In My Father's house there are many mansions; if it were not so, I would have told you; for I go to prepare a place for you, I come again, and I will receive you unto Myself; that where I am, there ye may be also." -- John 14:1-3