You say that Christians won’t be judged for their sins at the Great White Throne, because all judgment fell upon Jesus. What Scripture supports your idea?
For God did not send His Son into the world to judge the world, but to save the world through Him. Whoever believes in Him is not judged, but whoever does not believe stands judged already because he has not believed in the name of God’s one and only Son.
John 3:17-18
Therefore, there is now no condemnation for those who are in Christ Jesus, because through Christ Jesus the law of the Spirit of life set me free from the law of sin and death.
Romans 8:1-2
*Also note Revelation 20 in which the dead (unbelievers) are pulled up from Hell and judged as to whether they are in the Book of Life. Conversely, in Chapter 21, the bride of Christ is cherished.