Why do you fail to address what is clearly contrary to your doctrine
Three arguments were placed contrary to it.
Sorry, but when you examine scripture, the word gentiles plainly appears.
Ephesians 2:11–22 (LEB) — 11 Therefore remember that formerly you, the Gentiles in the flesh, the so-called uncircumcision by the so-called circumcision in the flesh, made by hands, 12 that you were at that time apart from Christ, alienated from the citizenship of Israel, and strangers to the covenants of promise, not having hope, and without God in the world. 13 But now in Christ Jesus you, the ones who once were far away, have become near by the blood of Christ.
and
For you are all sons of God through faith in Christ Jesus, 27 for as many of you as were baptized into Christ have put on Christ. 28 There is neither Jew nor Greek, there is neither slave nor free, there is neither male and female, for you are all one in Christ Jesus. 29 And if you are Christ’s, then you are descendants of Abraham, heirs according to the promise.
Greek
a. Gentile, pagan, heathen (2 Macc 4:36; 11:2; 3 Macc 3:8; 4 Macc 18:20; Sib. Or. 5, 265; Phot., Bibl. 62, 8:219 Jac. τὴν θρησκείαν Ἕλλην) J 7:35; Ac 9:29 v.l. (for Ἑλληνιστάς); 11:20 (v.l. Ἑλληνιστάς); 16:1, 3; 21:28; 1 Cor 1:22; Gal 2:3; PK 2 p. 14, 1; 7; p. 15, 7; Dg 1; 3:3; 5:17. The expr. Ἰουδαῖοι καὶ Ἕλληνες, which clearly indicates Israel’s advantages fr. the Jewish standpoint, embraces the whole human race Ac 14:1; 18:4; 19:10, 17; 20:21; Ro 1:16; 2:9f; 3:9; 10:12; 1 Cor 1:24; 10:32; 12:13; Gal 3:28; Col 3:11
William Arndt et al., A Greek-English Lexicon of the New Testament and Other Early Christian Literature : A Translation and Adaption of the Fourth Revised and Augmented Edition of Walter Bauer’s Griechisch-Deutsches Worterbuch Zu Den Schrift En Des Neuen Testaments Und Der Ubrigen Urchristlichen Literatur (Chicago: University of Chicago Press, 1979), 252.
Further the term Greek is differentiated from "Jew," as is seen in each phrase
Jew nor Greek, there is neither slave nor free, there is neither male and female,
One cannot be a slave and free, a male and a female, therefore a Jew and a Greek
Thus, you appear as someone unwilling to believe based upon any evidence.