re: #93 Sergey Romanov

Something like that, but even that is not absolute. Given the objective vagueness of the term, we can have a situation where some people think that a person belongs to the group and some don’t - and they all are correct, just from their perspectives.

Depends on what “correct” means. I am more talking validity than correctness. Under any liberal sense of law, self-identification absolutely does trump all. I believe in today’s EU, you could literally declare yourself to belong to whatever ethnicity you wanted to and then claim whatever benefits etc. applied in certain places.