Here is something to think about. Now mind you, I am not offering this as a theological doctrine, but merely as a "what if".
As I mentioned in a previous post, there were many generations of people who did not have the benefit of the written scriptures, yet God spoke to them. This was before the time of the Israelites as the chosen people. So why did God choose Israel? Was it because there was something special about them or because God only wanted certain people to be saved? Of course not. Maybe the only thing that made them special was that some of them were listening and nobody else was and because of that God set them apart and fulfilled His Word through them.In that respect it might even be said that many other peoples had rejected Christ even before the birth of Jesus.
Don't like that? Here's another more widely held view, though I don't think it is mutually exclusive. He taught us to go into all the world and preach the gospel, the great comission, and Christians have been doing exactly that since the beginning. That makes US His messengers and there is virtually no place in the world untouched by the gospel except by choice. Do I believe that someone is condemned to hell who lives under a tyrannical ruler but seeks the truth? No I don't, because God says that those who seek Him will find Him if they search for Him with all their heart. (Jer. 29:13) That's the key. There is a part of all of us that knows our Creator and we can either seek Him and His truth in which case He will reveal Himself in some way or through someone, or we can turn away from Him and seek our own way, continuing to follow the path of original sin by trying to be god of our own lives.
Sorry if I appear to be critical of God, but I am simply confused about the efficiency of reaching the most people?
Another point that you raised in your comments was the “chosen people” thing. I also have been struggling with this idea. As a parent, it is one the most important psychologically sensitive point to treat your children equally, and to love them equally. By simply saying that he chose one race over another, he has created an unfair practice?
I wonder sometimes if the Japanese had written the holy books, would the Japanese be the chosen people?
Again, I don't mean to be disrespectful, I am simply a seeker of the truth. If we don't allow our mind to question things, we probably will not achieve progress in our knowledge?