Why did God create rest of humanity i wonder?
God did not give milliuons of humans a piece of bread but he gave jews the land!
God has a different purpose for the rest of humanity. If you want to be exalted higher than the Jew, you need to become a Christian. They are the bride of Christ. The Jews were offered this position, but they rejected it when they rejected their messiah, Jesus Christ. To become a Christian is to become the "bride of Christ" and will become royalty in heaven and rule over all races, including the Jews when He comes into His kingdom. There are three classes of people: Jews, Gentiles and the Christians. The Christians are made up of all races of men who become "born again" according to the bible. These are the people who will be most exalted in the kingdom. You can be as well, but you must believe that Jesus Christ is who the bible says He is.
The Jews (as a nation) still have a place in God's kingdom, but the ones living today need to accept Jesus Christ and become the bride of Christ. If they do this, they will become exalted higher than the Jews of old who served the Lord. The same is true for arabics, whites, blacks and everyone else. You can become royalty in heaven with God if you will accept His Son Jesus Christ as your Lord and Savior.