It's a pretty well understood concept that children are intellectually moldable creatures. Challenge them to consider new ideas, and they can really surprise you with their original thoughts. My experiences with teaching children and having my own children has never ceased to amaze me when it comes to the creative ways that children can process information.
That being said, it's also amazing that when children are spoonfed fundamentalist dogma, for their formative years, how scary and rigid they can turn out. You can't help but wonder what sort of inflexible environment has to exist for a child to give up their curious nature and their sense of empathy for other types of people.
I think that when you condition children that there are concrete right and wrong beliefs to have and right and wrong types of people to BE... that you're setting your child up for a hard life. No matter what you believe to be the "right way" to live your own life, it's important for a child to question things in their environment... whether that's questioning things that parents believe in or not.
It's surprisingly easy.. some would say disturbingly so.. to find the results of damaging kinds of childhood environments all over the media; one can only hope that these kids all grow up to learn how to think for themselves.
'Racist' parents fight for children
Wal-Mart Decorates Cakes for Nazis