birdie, you normally argue very strongly but not in this occasion.
Everyone has been aware that racism is a two-way street.
Phrases like "a general consensus", "the powers that be", "for whatever reason", "the governing classes" are the kind of deliberately vague ramblings you find on the Daily Mail letters page. It's the language of people who can't be bothered to find any evidence to support their views, or suspect it doesn't exist so try to circumvent it. No one genuinely denies that racism is racism if it flows from black to white. It makes you sound paranoid to suggest a liberal conspiracy to keep the issue under wraps, mate.
What I will say is that, as the balance of power has shifted away from white-to-black oppression to a more level playing field, you're might well find more evidence of racism coming the other way. That's no more acceptable than any other form of racism. Bt then, no one is suggesting it is.