Scripture refutes you
Titus 2:11For the
grace of God has appeared, bringing salvation
to all people,
Christ death which is for all, is a matter of Grace
Hebrews 2:9 (LEB) — 9 but we see Jesus, for a short time made lower than the angels, because of the suffering of death crowned with glory and honor, so that apart from God he might taste death on behalf of everyone.
2 Corinthians 5:14–15 (KJV 1900)
— 14 For the love of Christ constraineth us; because we thus judge, that if one died for all, then were all dead:
15 And that he died for all, that they which live should not henceforth live unto themselves, but unto him which died for them, and rose again.
A ransom for all, as God desires the salvation of all people
1 Timothy 2:3–6 (LEB) — 3 This is good and acceptable before God our Savior, 4 who wants all people to be saved and to come to a knowledge of the truth. 5 For there is one God and one mediator between God and human beings, the man Christ Jesus, 6 who gave himself a ransom for all, the testimony at the proper time,
He was therefore making propitiation for all the world's sin
1 John 2:2 (LEB) — 2 and he is the propitiation for our sins, and not for ours only, but also for the sins of the whole world.
Christ is therefore a savior for all the world
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.
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.
Regarding Romans 11:5-7
Romans 11:5–8 (LEB) — 5 So in this way also at the present time, there is a remnant selected by grace. 6 But if by grace, it is no longer by works, for otherwise grace would no longer be grace. 7 What then? What Israel was searching for, this it did not obtain. But the elect obtained it, and the rest were hardened, 8 just as it is written, “God gave them a spirit of stupor, eyes that do not see and ears that do not hear, until this very day.”
Grace is offered to all. Those with faith obtain it. They become the elect or chosen
Romans 3:21–31 (LEB) — 21 But now, apart from the law, the righteousness of God has been revealed, being testified about by the law and the prophets—22 that is, the righteousness of God through faith in Jesus Christ to all who believe. For there is no distinction, 23 for all have sinned and fall short of the glory of God, 24 being justified as a gift by his grace, through the redemption which is in Christ Jesus, 25 whom God made publicly available as the mercy seat through faith in his blood, for a demonstration of his righteousness, because of the passing over of previously committed sins, 26 in the forbearance of God, for the demonstration of his righteousness in the present time, so that he should be just and the one who justifies the person by faith in Jesus. 27 Therefore, where is boasting? It has been excluded. By what kind of law? Of works? No, but by a law of faith. 28 For we consider a person to be justified by faith apart from the works of the law. 29 Or is God the God of the Jews only? Is he not also the God of the Gentiles? Yes, also of the Gentiles, 30 since God is one, who will justify those who are circumcised by faith and those who are uncircumcised through faith.
and yet they can fall from grace
Galatians 5:4 (LEB) — 4 You are estranged from Christ, you who are attempting to be justified by the law; you have fallen from grace.
Hebrews 12:15 (LEB) — 15 Take care that no one falls short of the grace of God; that no one growing up like a root of bitterness causes trouble, and by it many become defiled;
Jude 4 (LEB) — 4 For certain men have slipped in stealthily, who were designated long ago for this condemnation, ungodly ones, who change the grace of our God into licentiousness and who deny our only Master and Lord Jesus Christ.