The Semitic Hebrews were/are Mizrahi Jews in Mesopotamia and Iran.
Nearly all "Eastern European Jews" since the Tenth Century are Khazars. A tiny seed element of Rheinland Jews (most of them essentially Germanic over the centuries, since Roman times) proselytized the Khazar Empire.
The real Jewish victims of World War II (about 300,000) were nearly all "little Jews," whose lives were then, as now, meaningless to Big Jews.