What does DNA have to do anything. I never said DNA should matter.
A parent can only pass a single item to a single child at a time. Typically if your many generations removed even if one out of a thousand of your ancestors is jewish or cannite or anything else that does **not** show inheretance rights to a plot of land. And unless you were born there (or if you want to be a bit lax your living parents were born there) you dont have a right to citizenship either.