By “alien”, I didn’t mean any negative connotations. I meant that I don’t understand it. Ugandan or Japanese cultures, for example, are alien to me, because I don’t understand their nuances and can’t be bothered to learn them. The US, with its proud European “descendants” (so many people claim to be European even though they are the third generation to never set foot in Europe), used to be at least understandable, but it’s shifting towards something where I no longer understand how people think or what motives drive them.