I'm Romanian. This seems like a harsh generalization, but I can see how it might look like that from the outside.

How about this alternative that's always been true for me and well.. probably everyone: people spend more time with like-minded people, be they foreigners or not. Why? I don't really need to answer that, right? :) So what does that mean? Well it means that you integrate easily into like-minded communities. If you're a foreigner then it's very probable that you're the odd one out and the community is composed of mostly natives.

I have lots of Romanian friends with whom I spend most of my time with, but I'm convinced that it's mostly due to the fact that we're like-minded. If I overhear a Romanian on the street do I instantly feel a need to talk to him? No, but I don't instinctively distance myself from him either.

edit: typing