Jewish ancestry is a topic of much debate, but the fact of the matter is that the existence of Jewish (Ashkenazi) racial genetics is not possible. DNA testing sites claim that certain individuals have Jewish genes, but such claims are not backed up by science. After all, the genes in question are not labeled as Jewish before they appear on a report. They are only labeled as such after the fact, which is to say, arbitrarily.
Furthermore, it is strange that Jewish genes appear on genetic reports, but there are no such occurrences for Christianity, Buddhism, Islam, Hinduism, or any other religion. Many people of Jewish backgrounds carry similar genes due to ancestral circumstances, but that does not make those genes Jewish. It simply means that a group of people carry similar genes, such as a group of people carrying genes for blonde hair or blue eyes.
Therefore, the labeling of certain genes as Jewish is done either out of ignorance or to serve an agenda. Since Jewish Supremacists consider themselves the chosen of a supposedly omnipotent God, it is most likely the latter because claiming that they have special genes serves to deem them as chosen on a genetic level. However, one can see that such a claim does not hold up under scientific scrutiny.
https://vnnforum.com/showthread.php?t=573168
