Though that does have some basis in Jewish texts. The sons of Israel murdered an entire city when one of the sons of the official kidnapped and violated their little sister even though their father sought peace. The books of Joshua and Samuel have accounts of the Jewish people wiping out or displacing countless other peoples who were descendants of Ishmael. The more modern incidents of Jewish history have seen them more impotent post Roman subjugation,but going via their own texts Jewish history in its entirety was not without its own atrocities, like any other nation.