There are two types of Israelites, the physical Israelites which are the children of Jacob and their descendant, the spiritual Israelites which are the genuine born-again believers. The physical Israelites is a shadow of spiritual Israelites, for God promise to Abraham is that "And in thy seed shall all the nations of the earth be blessed." So, God is about the whole world, but the physical Israel is chosen to bring forth Yeshua HaMashiach, the source of that blessing and anyone that believe in Him is now qualify as the spiritual Israelites.
And to God Israelites in the end time are the genuine born-again believers who will reign with the Lord in the new world.