Salvation is given to and limited to a seed, some gentiles are included in that seed. Christ died specifically for a seed, seen vividly here Isa 53:10
10 Yet it pleased the Lord to bruise him; he hath put him to grief: when thou shalt make his soul an offering for sin, he shall see his seed, he shall prolong his days, and the pleasure of the Lord shall prosper in his hand.
The problem is that these things need to be understood by faith, in spirit, not with the carnal mind. They must be spiritually discerned. That is bible truth.
The carnal mind can't hold the truth in spirit, but will carve it in stone of flesh, so to speak, resulting in this case in a fatalistic point of view wrongly thinking that a soul doesn't have any part or choice in accepting Christ's offer of salvation at all and no choice or accountability if they reject it. The scripture clearly says the natural man can't perceive the things of God because they are spiritually discerned. I've seen it over and over again through the years, the flesh running away with some aspect of God's truth, resulting in error...a wrong-headed conclusion. We need to grow to learn to receive understanding from the Lord, not from our natural mind of flesh. Understanding of scripture comes by revelation…the Holy Spirit revealing it to our hearts:
1Co 2:7-16
But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:
Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory.
But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him.
But God hath revealed them unto us by his Spirit: for the Spirit searcheth all things, yea, the deep things of God.
For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God.
Now we have received, not the spirit of the world, but the spirit which is of God; that we might know the things that are freely given to us of God.
Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual.
But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.
But he that is spiritual judgeth all things, yet he himself is judged of no man.
For who hath known the mind of the Lord, that he may instruct him? But we have the mind of Christ.