No one comes to the Father except through Christ.
If you are not in relationship with the Father His wrath is upon you; you are damned.
Of course, I usually use a softer terminology but these are the underlying truths.
Here’s a few relevant Bible verses taken from Bible Gateway.
And the bow shall be in the cloud; and I will look upon it, that I may remember the everlasting covenant between God and every living creature of all flesh that is upon the earth.
And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee.
He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.
And God said, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his seed after him.
Every sabbath he shall set it in order before the Lord continually, being taken from the children of Israel by an everlasting covenant.
And he shall have it, and his seed after him, even the covenant of an everlasting priesthood; because he was zealous for his God, and made an atonement for the children of Israel.
7.2 Samuel 23:5
Although my house be not so with God; yet he hath made with me an everlasting covenant, ordered in all things, and sure: for this is all my salvation, and all my desire, although he make it not to grow.
8.1 Chronicles 16:17
And hath confirmed the same to Jacob for a law, and to Israel for an everlasting covenant,
And confirmed the same unto Jacob for a law, and to Israel for an everlasting covenant:
The earth also is defiled under the inhabitants thereof; because they have transgressed the laws, changed the ordinance, broken the everlasting covenant.
Incline your ear, and come unto me: hear, and your soul shall live; and I will make an everlasting covenant with you, even the sure mercies of David.
For I the Lord love judgment, I hate robbery for burnt offering; and I will direct their work in truth, and I will make an everlasting covenant with them.
And I will make an everlasting covenant with them, that I will not turn away from them, to do them good; but I will put my fear in their hearts, that they shall not depart from me.
Nevertheless I will remember my covenant with thee in the days of thy youth, and I will establish unto thee an everlasting covenant.
Moreover I will make a covenant of peace with them; it shall be an everlasting covenant with them: and I will place them, and multiply them, and will set my sanctuary in the midst of them for evermore.
Notice that none of these passages say that the everlasting covenant with the Jews will end when the Messiah comes.
Yes, correct, no one can come to the Father without the grace provided by Jesus; but that grace can be given to virtuous pagans and religious Jews without their conscious knowledge. And, yes, Jesus invited the Jews to join His Church; but He did not force anyone to do so, and he continues to extend His grace to those whom He chooses.
We see at the Transfiguration that several Old Testament figures are in Heaven, although they did not know Jesus in this life.
Obviously this is a complex matter, not to be settled in a few words. But it is simply wrong to put limits on what God can do to save those whom he chooses.