I didn't say that. I was talking about a specific training, (which you can read about in the link) run by Coca Cola, which quite literally asked white people to try to be less white. It's written on one of the slides that forms the training.
I'm not against sensitivity training per se (though I think it's often horribly clumsily done), but this is racism, pure and simple. If we don't speak out against racism, regardless of who it's directed at, then I'd argue that that's the betrayal of MLK's dream.
I'm not trying to argue that we should never talk about race. Of course not. There are many issues that affect people of colour and we can't talk about hem unless we note that race is a factor. But these are policy level issues. Let's leav our discussions of race there.
At the human level, I think it's past time we stopped judging any individual by their membership of any "category", whether based on skin colour or any other immutable characteristic. Black, white, gay, straight, man, woman, and everything in between. We're human. The sooner we see each other that way the better.