A lot of it is built up prejudice. As each generation grows up with racist qualities in their lifestyle, that’s what they become accustomed to and what they see as right without questioning it. That’s why a lot of people who grew up with segregation and legal racism found it hard to adjust to changing times. If something, such as racism, is built into the foundation of someone’s beliefs as they grow up, it becomes difficult for them to change their opinions. They can end up subconsciously passing on those opinions to their children and it moves on through each generation.