I am Slavic and immigrant in Lat Am. This is what people do here. You're white, means you're German - or something comparable.

I tried to explain the exploitations German aristocracy did on my people because obviously nobody can know the history here. I found out that people don't actually believe that all white people are rich and privileged, or at least they don't care. They just get a kick out of being able to bully a white person.