No jew is a legitimate Hebrew, Israelite or Judahite. They are all descended from the Edomites conquered converted and integrated into Judaea in 125 BC by John Hyrcanus. They become thenceforth known as Judaeans. This is attested to in Josephus’ Antiquities of the Judaeans, (13:257-258, 13:395-397 et al.) and Strabo’s Geography (book 16) as well as later sources such as the Biblical Encyclopedia, Vol. 2, Col. 1187.
These Idumaeo-Judaeans rose to the heights of power in the synagogues and in politics in Judaea under the Roman client king Herod the Edomite who tried to kill Christ in his infancy. At the time of Christ many of the Judaeans, and most of the Pharisees, Sadducees and politicians were of the stock of Esau-Edom and not Jacob-Israel. For an understanding of where God stands concerning Esau-Edom see Malachi 1:2-3 and the book of Obadiah.
These Edomites were ancestral foes of Israel who had mingled with the cursed Canaanites who in turn had mingled with the Kenites. (the offspring of Cain and the mysterious women of Nod) These Idumaeo-Judaeans were no more Judahites or Israelites than an Ashkenazi jew is a German or Slav or a Sephardic jew is an Italian or a Spaniard.
These are the false Judaeans which St. John warned the assemblies about. (Revelation 2:9 and 3:9) John the Baptist called them a race of vipers. (Matthew 3:7) Christ called them children of the devil (John 8:44) and a race of vipers. (Matthew 23:33) In Romans chapter 9 St. Paul discusses these circumstances concerning the Edomites at some length. Many other scriptures also bear witness to this.
“Jews began to call themselves Hebrews and Israelites in 1860”
-Encyclopedia Judaica 1971 Vol 10:23
“Strictly speaking it is incorrect to call an Ancient Israelite a Jew or to call a contemporary Jew an Israelite or a Hebrew.”
-1980 Jewish Almanac, p. 3.
“The modern Jew is the product of the Talmud.” -Michael Rodkinson, in preface of Babylonian Talmud, page XI
“Pharisaism shaped the character of Judaism and the life and thought of the Jew for all the future.”
-Isidore Singer, The Jewish Encyclopedia, 9:665-666.
"Indeed the Edomites later became completely absorbed in Jewry and under their aggressive intrusion the Jews became racially the medium of expression for the Edomite ideal for which Herod the Great had first given political formation. The Edomite intrusion into Judaism at every historical point of contact is fully discussed in the volumes of the Cambridge Ancient History." Shane Vernon Sutherland
-Biblical Encyclopedia, Vol. 2, Col. 1187