The term World is further described here
Sorry you have simply misinterpreted scripture
You have shown nothing in contradiction to
Titus 2:11 (LEB) — 11 For the grace of God has appeared, bringing salvation to
all people,
and assume God cannot bring any he wants into the covenant
You have argued world refers to the world of the Jews.
But you clearly are in error
John 17:6–9 (LEB) — 6 “I have revealed your name to the men whom you gave me out of the world. They were yours, and you have given them to me, and they have kept your word. 7 Now they understand that all the things that you have given me are from you, 8 because the words that you gave to me I have given to them, and they received them and know truly that I have come from you, and they have believed that you have sent me. 9 I am asking on behalf of them. I am not asking on behalf of the world, but on behalf of those whom you have given me, because they are yours,
World here is simply those who are not Gods
And
John 15:19 If you were of the world, the world would love its own. But because you are not of the world, but I chose you
out of the world, for this reason the world hates you.
John 17:6 “I have revealed your name to the men whom you gave me
out of the world. They were yours, and you have given them to me, and they have kept your word.
Christ here prays for the disciples he had been given
They are not a part of the world.
Later he prays for those who believe in God through the ministry of those given
John 17:20 (LEB) — 20 “And I do not ask on behalf of these only, but also on behalf of those who believe in me through their word,
Here the prayer is for all who believe.
world here remain those who do not know God
John 17:25 (LEB) — 25 Righteous Father, although the world does not know you, yet I have known you, and these men have come to know that you sent me.
Nowhere is the word world a reference to Jews alone.
Through Christ is salvation for the world
John 3:17For God did not send his Son into the
world in order that he should judge the
world, but in order that the
world should be saved through him.
1 John 4:14 (LEB) — 14 And we have seen and testify that the Father has sent the Son to be the Savior of the world.
world defined as all people
Titus 2:11 (LEB) — 11 For the grace of God has appeared, bringing salvation to
all people,
1 Timothy 4:10 (LEB) — 10 For to this end we labor and suffer reproach, because we have put our hope in the living God, who is the Savior of
all people, especially of believers.
All people includes more than just believers, and never is it a reference for Jews alone.
God is their savior based on his love for all people, that is the world.
John 3:16 (KJV 1900) — 16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
Your position is clearly refuted.