Just because the Russians say they have it, that doesn't mean Poles have to as well.
Judging by the number of responses so far, I imagine this isn't something Poles really think about.
Apparently there was quite a good tax wangle you could do by buying those Russian souls, but despite the efforts of a rather unpleasant Swiss bloke and a revolution or two, that opportunity is as dead as the souls in question.
I can remember growing up and being distinctly drawn to slavic music and art without understanding what made it different from normal western culture
People are strangely drawn to all kinds of things, often but not always connected with their personal prehistory. I used to be strangely drawn to art students.