I agree with most of your post Chris, but these organisations were formed because there is already discrimination within the parent organisations... The Music Industry and The Police. You can't really blame a minority group for wanting to have something which isn't totally controlled by old white men with secret handshakes.
So the answer to dealing with an organisation that discriminates based on race/colour, is to set up an organisation that discriminates based on race/colour?
No, I didn't say it was right. I was just pointing out the reason for these organisations. I like to think they were created to balance out inequality rather than specifically discriminate against "whites". The answer is easy... stop people from discriminating... we've not done very well at that in the past though!