The Israelites were chosen to be God's lamp to the world, to be an example of Godly behavior, and to preserve a pure bloodline to bring Christ into the world. All that has happened and now believers in Christ have that role, unto the second coming. It's really simple and everyone who is looking at bloodlines and heritage is a fool caught in one of satan's oldest tricks. White and black pride, "proud of your race", etc, it's all bullshit.

"Flesh and blood matters not" etc