Why are other civilizations ignored in the Bible?

[Esquilax]

The idea was to get the chosen people into shape so the Messiah would then emerge from them and lead the entire Gentile world to God. This is prophesied to happen in the Old Testament, even the enemies of the Jewish people and their former oppressors in Egypt.

That doesn't really answer the question, it just explains the problem further; the question is why was it only that one group of people that were given this treatment? Surely god would be capable of performing the same feat across every demographic group, with multiple messiahs that could spread the message much more effectively and uniformly? Why did he then opt for a much less effective method for attaining his stated goal?

Older as you see it, remember I believe in the creation and that includes the garden and this is where God started, with the first two people.

Bad luck for you then, because the world as you see it is demonstrably, factually incorrect. You are simply in error, here.