Multi-racial Youth Ministry

One thing that I rarely ever see in the emergence Christianity discussions is a post-racial church. I see post-evangelical, post-denominational, post-everything else, but I don't often see anything about post-racial. As our American culture becomes more and more diverse, I'm hoping for a church that starts to reflect the incredible variety of God's human creation. I'm as excited as the next person about the coming changes in our Christian culture. We're taking on big theological issues, social justice issues, yet we still have black church, white church, hispanic church, asian church, etc... Why does Sunday morning continue to be one of the most segregated times in America? Shouldn't that be a time when brothers and sisters of all kinds and colors get together? What a powerful statement it would be for the world to see a united body of Christ, living and loving together. I have to believe that this is what Jesus would want. Any thoughts?