Nicely put. I see this barrier between us all and it seems so petty on the greater schemes of things. I have no hate in my heart for any color or belief. Opposite of your story, I am white and I grew up in a predominately black/Hispanic neighborhood and I have been able to relate to many cultures. From my immigrant Romanian friend in grade school, to my childhood Cubano friends, I don't see them differently nor do I judge them that way.
I think that if our land mass was still much of one piece, our species would have worked towards a common goal instead of killing each other off. Imagine if ONE jew out of all those millions who died had a revolutionary idea or invention that could have changed the world but never had a chance to self actualize due to it's own kind limiting him/her.