So, it's okay for a white personal to tell a black person about how it is to be black?
I've got news for you......
That’s not what I said, what I said was, I wouldn’t discount a persons opinion or experience based on an identifier.
For example, a family friend lived, worked, got married etc in Malawi. He is white as it’s possible to be. (For the pointless record, his wife and children aren’t.)
My oldest fiend, as close to me as a brother, has rarely left these shores, and when he has, it’s been to European countries (same as me.) He is Afro-Caribbean.
If I wanted to know what it was like to be ‘black’ in Africa, person (a) is my best source (in this example, really I could ask Ghanaian sort-of-in-laws) over asking person (b) because of their experience. On the other hand, if I wanted information on being a Black Londoner (beyond, you know, growing up and living in the exact same environs for most of our lives. Maybe I want to know what it’s like being a Black Briton who works in IT, because he’s way more successful than me xD) then I would ask person (b).
To discount person (a) on the basis of skin colour would be ridiculous. He has a viewpoint and information that is just as true as anything. It may be of less value, but it is not of no value.
And all of that assumes that you can pigeonhole so nicely into ‘blackness’ or ‘whiteness’, which personally I find unpleasant; I do not subscribe to the Grand American Dulux Colour Chart any more than I do Horoscopes or Phrenology. I have way more in common with Idris Elba than I do Donald Trump, or even Danny sodding Dyer.
So yeah, I don’t discount anyone. Unless they are a prick. Then it’s probably safe to do so.