Wolf has a good point. We lost neshamot, and we later gained neshamot… Maybe current neshamos are some substitutions for the ones that were lost? Maybe the originals were better? Not sure how much qabalah is allowed in CR.
Also, if you are concerned that your father is from Vilno and mother from Budapest – who says that your father would not have travelled to Budapest during peaceful 20th century and met your mother anyway? bashert is bashert …