Sighs... Racism (discrimination) happens anywhere that someone is in a minority. It's human nature that we notice when someone stands out. If a white wants to experience it they only need to visit a country where they're going to stand out (or even certain areas in some countries). It's certainly a humbling experience and would make you realise why you might not want to treat anyone else that way. It's probably one of the reasons why those who travel are a lot more open minded and kinder to those around them.