That's also why it doesn't make sense to talk about white and black culture outside of USA because the cultures are so different from country to country in Europe and there's a pecking order going on amongst white people. Even people from, say, the Middle East will rarely say "You white people" but rather "You French/German/Norwegian/and-so-on people"
Now, is it racism? It depends on how much you buy into the idea of race. A Dane who hates Swedes wouldn't call that racist, but people from Eastern Europe start to look different enough that it's often called racism, and in a way that plays into the negative feelings too. It's complicated.