Am very thankful for Jesus victory on the cross for the sins of all people. The whole world has been reconciled back to God because of this act of love that God had shown to Jew and Gentile alike. Imagine if Jesus just only died for some, would we really have good news to share to other people?
My best estimation is no we would not, however you do have good news to share.
Jesus overcame death,sin,Satan,and hell… that anyone who believes that He was buried and resurrected can be saved from the bondage of sin and death. Which is spiritual death that is overcame by and through faith.
Jesus has saved the world from Satan, death, sin and hell. Already once and for all people. It is just a choice now if people believe that and receive faith and live life in accordance to the Will of God which is expressed in and through out the entire Bible.
To love God, and to Love others being saved by the grace of God through faith on the death, burial, and resurrection.
However there are people out there now today whom still believe that Jesus victory is not completely done. Also that the Revelation has not been completed. So you will have people out there also who believe they are chosen and elected by God (which they had no service in receiving) because God chosen them over every other people in the earth.
The reality is God chosen the nation of Israel over all else to work through to bring forth the messiah who would going to put and end to the devils work, also to bring about salvation to the Jewish people and Gentile nations alike.
God calls all people to himself and the end result according to the Bible is to be saved to the kingdom of heaven/ God/ Heavenly Jerusalem is to have faith on the Lord Jesus Christ who died, was buried and resurrected again to new life.
Otherwise you will end up outside of the kingdom and as people now in today’s time have all ample time to seek and grow in the knowledge of God by looking and seeking in the Bible.