The Point for me is cultural curiosity.
I have a great relationship with a custom knife maker who is white no big deal for either of us.
He, a long time experienced maker interested in U.S. history, couldn't think of any. I'm wondering if in knifemaking perhaps as in golf till recently, blacks or other minorities have stayed out/been kept out, of something that they might have a lot to contribute to, and further enrich the craft via desings, philosophy, materials or purposes that come with growing through a particular culture.
We identify tanto as a Japanese design, grown out of their culture, there are Norse designs identified with that culture, it's not racism or wrong to inquire about Blacks in the craft in that sense. I think it might be more racist to presume that all good knifemaking in the US is either white or Eurocentrist. Perhaps an inquiry like this may invite some able minority to sort of "Tiger Woods" and enter the field, bring unique insights and even raise the bar in the craft.
And please take no racism sort of offense, I am way too multiracial and multicultural to be able to indulge in the luxury of racism.