This question can be resolved by the last two verses of Daniel chapter 9, verses 26 and 27.
v.26 – “And after the sixty-two weeks, the Messiah shall be cut off, but not for Himself; and the people of the prince who is to come shall destroy the city and the sanctuary. The end of it shall be with a flood, and till the end of the war desolations are determined.”
v.27a – “And he shall make a firm covenant with many for one week . . .”
The word “week” in Hebrew is shavua which simply means ‘seven.’ From the context of Daniel chapter 9, verse 27 refers to the last seven years before the Messianic Kingdom is established, the seven years of the Great Tribulation.
As for the pronoun “he,” many Bible scholars would agree that this refers to the Antichrist who will sign a seven-year covenant with Israel.
Now to determine whether the Antichrist will be a Jew or a Gentile, that pronoun “he” connects back to the “prince” mentioned in verse 26: “. . . the people of the prince who is to come shall destroy the city and the sanctuary . . .”
Forty years after the Messiah made the Atonement at the Cross, Jerusalem and the Temple were destroyed by a Roman invasion. Notice that it’s not the prince himself (the Antichrist) but the people of the prince, the people of the Antichrist, who caused the destruction. And that people were the Romans who destroyed the city and sanctuary in 70 A.D.
Therefore, if the people and the prince are of the same race, then the Antichrist will not be a Jew but a Gentile — specifically, a Gentile of Roman origin