Eph 2:15 having abolished in the flesh the hostility, the law of
commandments contained in ordinances, that he might create in himself
one new man of the two, making peace.
The question shows an immense lack of contextual & theological understanding on your part. The ethnic and gender identities are not hats to be removed and put back on. Paul never ceased to be Jewish, especially by immersion or baptism, which is a common and frequent Jewish custom for ritual cleansing.
Jewish Encyclopedia BAPTISM:
By: Kaufmann Kohler, Samuel Krauss
Baptism was practised in ancient (Ḥasidic or Essene) Judaism, first as
a means of penitence, as is learned from the story of Adam and Eve,
who, in order to atone for their sin, stood up to the neck in the
water, fasting and doing penance—Adam in the Jordan for forty days,
Eve in the Tigris for thirty-seven days (Vita Adæ et Evæ, i. 5-8).
According to Pirḳe R. El. xx., Adam stood for forty-nine days up to
his neck in the River Gihon. Likewise is the passage, "They drew water
and poured it out before the Lord and fasted on that day, and said,
'We have sinned against the Lord'" (I Sam. vii. 6), explained (see
Targ. Yer. and Midrash Samuel, eodem; also Yer. Ta'anit ii. 7, 65d) as
meaning that Israel poured out their hearts in repentance; using the
water as a symbol according to Lam. ii. 19, "Pour out thine heart like
water before the Lord." Of striking resemblance to the story in Matt.
iii. 1-17 and in Luke iii. 3, 22, is the haggadic interpretation of
Gen. i. 2 in Gen. R. ii. and Tan., Buber's Introduction, p. 153: "The
spirit of God (hovering like a bird with outstretched wings),
manifested in the spirit of the Messiah, will come [or "the Holy One,
blessed be He! will spread His wings and bestow His grace"] upon
Israel," owing to Israel's repentance symbolized by the water in
accordance with Lam. ii. 19.
Paul was a Jew by race, and had a Roman citizenship too. None of these identities are absolved by submitting to the Jewish Messiah. Also, gender confusion and denial did not exist in the ancient Israel, it is a very modern cultural phenomenon. Paul and the Messiah Jesus would always remain Jewish.
(Romans 9:2-5 NHEB) that I have great sorrow and unceasing pain in my
heart.For I could wish that I myself were accursed from Christ for my
brothers' sake, my relatives according to the flesh,who are
Israelites; whose is the adoption, the glory, the covenants, the
giving of the law, the service, and the promises;of whom are the
fathers, and from whom is Christ as concerning the flesh, who is over
all, God, blessed forever. Amen.
The ethnic and national distinction between Jews and Gentiles is never absolved. Paul repeatedly said that God judges everyone impartially, however the Jews first in priority and then the Gentiles.
Rom 1:16 For I am not ashamed of the Good News of Christ, for it is
the power of God for salvation for everyone who believes; for the Jew
first, and also for the Greek.
Rom 2:9 oppression and anguish, on every soul of man who works evil,
to the Jew first, and also to the Greek.
Rom 2:10 But glory, honor, and peace go to every man who works
good, to the Jew first, and also to the Greek.
Gal 2:15 “We, being Jews by nature, and not Gentile sinners,
God has not rejected his special chosen nation after giving the universal new covenant through the Messiah. This has been explained in detail in Romans 9-11. See chapter 11 for precise facts recalling the old promises and national covenant as being unconditional. The statement of Galatians 3:27-28 merely states the unity in Christ. Before the covenant of Christ, the Gentiles were godless and overlooked by God (Acts 17:30; Romans 1). The Gentiles were considered animals like dogs according to the Jews, because of their sinful life, and considered unclean, but not anymore. Christ has broken the wall of division with a superior covenant, allowing the Gentiles to join the religion of Israel equally without converting to Judaism. The law or covenant of Moses has been abolished through the Messiah (Ephesians 2:11-22)
I advise you first study some good commentaries before posting such questions.
Galatians 3:28 here is neither Jew nor Greek, there is neither bond
nor free, there is neither male nor female: for ye are all one in
Jamieson-Fausset-Brown Bible Commentary
- There is in this sonship by faith in Christ, no class privileged above another, as the Jews under the law had been above the Gentiles
(Ro 10:12; 1Co 12:13; Col 3:11).
bond nor free—Christ alike belongs to both by faith; whence he puts
"bond" before "free." Compare Note, see on 1Co 7:21, 22;
neither male nor female—rather, as Greek, "there is not male and
female." There is no distinction into male and female. Difference of
sex makes no difference in Christian privileges. But under the law the
male sex had great privileges. Males alone had in their body
circumcision, the sign of the covenant (contrast baptism applied to
male and female alike); they alone were capable of being kings and
priests, whereas all of either sex are now "kings and priests unto
God" (Re 1:6); they had prior right to inheritances. In the
resurrection the relation of the sexes shall cease (Lu 20:35).
one—Greek, "one man"; masculine, not neuter, namely "one new man" in
Christ (Eph 2:15).
Matthew Poole's Commentary
There is neither Jew
nor Greek; in the business or justification, the case of Jews and
Greeks is the same. This he saith, that the Galatians might not think
themselves disadvantaged from their not being under the law, as the
schoolmaster that should lead them unto Christ.
There is neither bond nor free; neither doth Christ consider the
qualities and circumstances of persons, whether they be servants or
free men; for though they be servants, Christ hath made them free, 1
Corinthians 7:22 Ephesians 6:8 Colossians 3:11.
There is neither male nor female: for ye are all one in Christ Jesus:
neither hath Christ any respect to sexes: the male children under the
law had many privileges; but it is all a case under the gospel,
whether persons be males or females, Jews or Gentiles, rich or poor,
servants or masters, bond-men or free-men.