Well, my daughter is 2, and she won't talk or go around black kids or adults...and I never taught that to her! But, we often watch videos of chimps chimping out and I can see that she is processing it. Educating from a young age is fine. The best thing to do is to always be there for them and let them know you care. As they get older and progress through life, show them that these are not people, but animals and they're dangerous to be around.