Racism isn't something one merely shakes off when one comes to the realization that we're all the same, sinful, corrupt, and covering up a hatred that was sown in our hearts from someone or some thing.
Black folk, white folk, Latinos, and Asians are all infected with what the Bible calls "sin." And sin isn't something one outgrows or overcomes on one's own, whether it's racism or homosexuality or adultery or thievery or lust. None of us have the innate ability to rid ourselves of such things absolutely. And even after by the grace of God one is brought to faith in Jesus Christ upon hearing the gospel and being obediently baptized and receiving the Holy Spirit, there is always our "old man," our old nature, the "flesh" to deal with ... for the rest of our "born again" lives.
Some people grow up without prejudice toward those of another skin color. Or, at least they say they do. The "proof is in the pudding" (that's for Paula). What is in one's heart will eventually and inevitably come out. And, neighbor, we all have the same kinda things in our hearts. Maybe to differing degrees. But they're there. And we all have a "button" that can be and will be pushed. And for millions of us, someone or some thing will push our button today. Remember that when you are faced with someone today who has just met someone who pushed theirs.