In a way, it’s a lack of education, but it’s more passionate than that. If someone had never learned to read, and someone offered to teach them, they would be happy and grateful for their new found knowledge. With something like racism, a person may eventually learn to be tolerant and accepting, but they would often be stubborn initially. Being racist is more along the lines of religion or disciplinary ideas: it’s something a person is raised with, and to question it would seem inherently wrong. If a person is raised to be racist, it’s not just something that can be taught away; that person has to admit wrong in themselves and their parental figures, and be willing to change their own beliefs.