Research from ADL has documented in detail the rise in antisemitism and anti-Zionism in the weeks and months following Hamas’s brutal assault on Israel on October 7, 2023. One of the most insidious claims used to discredit both Jews and Israel is that Ashkenazi Jews (i.e., Jews who trace their ancestry to Northern and Eastern Europe) have no historical or genetic relationship to Jewish antiquity in the land of Israel—making Jews “colonizers” with no legitimate claim to…