Here is the commandment and reason given to Moses for writing the Song of Moses which will also be sung in heaven:
I will heap mischiefs upon them; I will spend mine arrows upon them. [They shall be] burnt with hunger, and devoured with burning heat, and with bitter destruction: I will also send the teeth of beasts upon them, with the poison of serpents of the dust. The sword without, and terror within, shall destroy both the young man and the virgin, the suckling [also] with the man of gray hairs. I said, I would scatter them into corners, I would make the remembrance of them to cease from among men: Were it not that I feared the wrath of the enemy, lest their adversaries should behave themselves strangely, [and] lest they should say, Our hand [is] high, and the LORD hath not done all this.
For they [are] a nation void of counsel, neither [is there any] understanding in them. O that they were wise, [that] they understood this, [that] they would consider their latter end! How should one chase a thousand, and two put ten thousand to flight, except their Rock had sold them, and the LORD had shut them up? For their rock [is] not as our Rock, even our enemies themselves [being] judges. For their vine [is] of the vine of Sodom, and of the fields of Gomorrah: their grapes [are] grapes of gall, their clusters [are] bitter: Their wine [is] the poison of dragons, and the cruel venom of asps. Deut 32:19-33
How many nations have survived two millennia of diaspora?
I strongly reassert that the statements in Romans 10:19-21 applying Deu 32:21 to Gentiles are Truth.
You missed my point or if you didn't then your answer was lost in endless verses which was (and I even placed a disclaimer) that Gentiles (the goyim) were not only non-Hebrews but Jews as well, in fact, anyone who worshiped idols.
My point was that there was no "gray" area where one could be a Gentile "a little bit" (à la Christians i.e. uncircumcised and not keeping dietary laws) and be considered anything but a goy. That applied even to the Jews who did not keep the Law.
There is no "grafting" as an idea or a possibility anywhere in the OT or in Christ's ministry. The kind of flexibility we see introduced with +Paul simply was never there; nor did Christ ever mention it.
The OT teaches nothing but contempt for the Gentiles (Jews and non-Jews alike), even genocide. In this mindset there was no room for Christ to preach for the inclusion of the Gentiles and (no wonder) He never did teach inclusion of the Gentiles; it was, as Acts 13 shows, an afterthought subsequent to a failure of Christianity to survive in Israel.