It's a good discussion to be had, but very few will thank you for it, and those that do will probably not be racist to start with.

I think the best cure for racism is travel. Go and live somewhere else, in a different country, in a different society, and you quickly learn that we are pretty much all the same.

I was lucky enough to travel the world when I was younger, and met people from all over the world. And the one thing that nearly all of them had in common was - once you got to know them, the were really nice people.