I'm a white person, and I've been discriminated against. I lived in another country years ago, and although the country was mostly white people, not all of them took kindly to a British person living in their country. It's only being able to experience this, and seeing the struggles of a family member who couldn't get a job because (although we all learnt the primary language there), couldn't get a job due to it not being her primary language, I think I can understand in some effects people who do move to another culture, and who are targeted.
It's not always based on the colour of your skin, just remember that. There are plenty of white people who may not like white people from other countries, and vice versa.