Paul was a Pharisee (Acts 26:5).
Paul described himself as being so zealous that he persecuted the church (Philippians 3:6). He was convinced that the way of Jesus Christ was wrong, so he had Christians put in prison and put some of them to death (Acts 26:9-11; 7:57-8:1).
Part of Paul’s thinking was that he believed the Jewish race of people to be superior to all other people. The Jews thought the Law of Moses taught this, and they would not tolerate a religion that extended God’s love to everyone (Acts 22:21-22; John 3:16).
So, what changed for Paul?
Paul met the Lord on the road to Damascus and realized he had been the wrong one (Acts 9:1-9). After being blind for three days, Paul was healed and baptized - washing away his sins - by Ananias (Acts 9:17-18). Paul was chosen by the Lord to “bear” His name before Gentiles (Acts 9:15).
The man who would have turned his nose up at the thought of going to the Gentile world would be sent to them by Jesus.
Paul learned something about the Lord and about people. He realized that both Jew and Gentile had sinned and fallen short of God’s glory (Romans 3:9-10).
For there is no difference; for all have sinned and fall short of the glory of God, (Romans 3:22-23)
He understood that Jesus died for both the Jew and Gentile (Romans 5:6-8). Jesus coming to this earth and dying on the cross was the ultimate demonstration of God’s love for everyone.
For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life. For God did not send His Son into the world to condemn the world, but that the world through Him might be saved. (John 3:16-17)
How could Paul continue to hate others and be prejudiced against certain groups of people when His Lord had demonstrated His love for them?
So Paul changed - because his life was all about Christ (Philippians 1:21).
The man who formerly hated and killed Christians could write to Christians after his conversion:
For God is my witness, how greatly I long for you all with the affection of Jesus Christ. (Philippians 1:8)
Paul could write to the churches of Christ (Romans 16:16) in Rome - which included Jews and Gentiles - and tell them:
First, I thank my God through Jesus Christ for you all, that your faith is spoken of throughout the whole world. For God is my witness, whom I serve with my spirit in the gospel of His Son, that without ceasing I make mention of you always in my prayers, making request if, by some means, now at last I may find a way in the will of God to come to you. (Romans 1:8-10)
Paul’s life was no longer consumed by hatred and prejudice - he was consumed by the love of God and the good news of Jesus Christ (Romans 1:15-17). He lived his new life in Christ Jesus, thankful for the mercy God had shown him (1 Timothy 1:12-17).
The Gospel of Jesus Christ is the answer to someone needing to remove hatred, prejudice, or racism from their life. These things are sins - which can only be cleansed by the blood of Jesus (Revelation 1:5; Acts 22:16).
The worldview of Critical Race Theory cannot rid one’s life of hatred and racism - only the good news of Jesus can do that.
However, simply knowing what the Gospel of Jesus teaches will not bring about this transformation in your life. Paul knew what the Christians were teaching - yet, he did not believe it at first.
Paul came to know that Jesus is who He claims to be, and he obeyed the Gospel (1 Corinthians 15:1-4). Then, he set out to live a life focused on Jesus and being like Him. This is what you must do.
If then you were raised with Christ, seek those things which are above, where Christ is, sitting at the right hand of God. Set your mind on things above, not on things on the earth. For you died, and your life is hidden with Christ in God. When Christ who is our life appears, then you also will appear with Him in glory. (Colossians 3:1-4)
If Christ is your life, then hatred will not be found in your life.