If what you call racism is inefficient, you should explain what market barriers prevent its disappearance, for developers in the developed world, in the UK in particular.

If its efficient, by calling it a problem you're implicitly saying that some people - presumably company owners? - should make their companies & teams less efficient, which is another way of saying they should waste resources. Even if some would agree with you, by doing that they would open themselves to a danger of being outcompeted by more efficient entities.