A debate about racism is not a meaningful debate, and it will never be fruitful. One reason for this is that ‘all racists are right,’ in a way.
No matter which group you focus on, you are going to find evil, sin and immoral behavior. You are going to find gossip, adultery, lying and murder, whether you are white looking at black or black looking at white. It doesn’t matter your nationality or the nationality you are focused on–you are going to find ample justification for believing that group is evil.
It is useless to defend a race of people. They are still people! Full of sin, error, hatred, a bent toward warfare, and making mistakes enough to pour over.
This is why I believe a revelation of our own sin is critical to seeing and believing correctly; this is why a recognition of EVIL within oneself is the key to spiritual enlightenment, and a focus on a racial apologetic will fail and does fail.
This is the reason you can’t find a focus on this concept in the bible, because it will never lead anywhere positive.
In a way, all racists are right. Once you realize this, that the real human problem is a general, shared evil, you are well on your way to becoming born again, or born anew.