In what context?
Oh, you know - whenever people find out that I support Israel in their conflict with palestinian Arabs or when I say something critical about the Church (of which I am a practising member); or when people think that I am doing "too well" in life (you know, the old Polish "na bank ma jakieś układy", "pewnie Żyd" etc.). :)
in today's Poland, origin does not play any role
For a
mensch, it doesn't. For
schmucks, it sometimes does. Hence my method. :)