Or, to give a more recent example, consider the discrimination East Europeans faced after their countries joined the EU and many of them immigrated to the West.
Europe is not the US. People from other European countries (and from many traditional minorities in the same country) are obviously different as soon as they start speaking. Many Europeans live outside their home country and most visit other European countries once in a while. There is a huge number of encounters between Europeans from various cultural backgrounds every day, and sometimes your background marks you as a member of an outgroup. And nobody is really excluded from that.
I think OP means that people in Europe hate each other for various reasons other than being "white christian" even if a lot of them are that. See how Romanians are treated almost anywhere in Europe, despite a lot of them being as white as they come, and Christian too. See how Poles are still perceived in a lot of places.
So yes, I actually agree with that statement - in Europe white christians will be primary recipients of xenophobia, but it's neither because they are white nor because they are christian.
