People need to learn to SET the example, instead of simply preaching.  You should not plant hate in young children.  They need to learn things for themselves, figure out that not all people are bad.  The more you set prejudice and hate in your heart, you are passing it on... and that is how the hate never stops. Because children look up to you. It is built in them. They instinctively search for a model to learn from.  How else can they survive in a world they are new to? They watch habits and learn.  They watch what you DO not what you say.