That is the sort of "private interpretation" condemned by Peter. All are born sinners, regardless of our natural parents. Only those born again, of the Spirit, become children of God, true Israelites, the redeemed people of God.
Claiming Jewish privilege - the sort of boasting we here from the Israelis - emphasises their condemned status in God's sight.
John 1:11 He came unto his own, and his own received him not. 12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name: 13 which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
Isaiah 1:10 Hear the word of the Lord, ye rulers of Sodom;
give ear unto the law of our God, ye people of Gomorrah.
Rom. 2:25 For circumcision verily profiteth, if thou keep the law: but if thou be a breaker of the law, thy circumcision is made uncircumcision. 26 Therefore if the uncircumcision keep the righteousness of the law, shall not his uncircumcision be counted for circumcision? 27 And shall not uncircumcision which is by nature, if it fulfil the law, judge thee, who by the letter and circumcision dost transgress the law? 28 For he is not a Jew, which is one outwardly; neither is that circumcision, which is outward in the flesh: 29 but he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter; whose praise is not of men, but of God.
Y1 specialises in private interpretation - he makes assertions without any Scriptural support. And he can NEVER explain what he writes.