Hybrids are not a race. They can’t breed pure strains.They are a mixed blend of two separate races.
So, people of any mixed ancestry are impure hybrids, and can't be designated as any particular race? What are they then - generic humans?
I guess we may as well throw out racial designations for the vast majority of Americans, if that's the case. I know very few who are 100% racially pure.
So, I'm asking you for the third time......what is the racial designation for someone who is half black, and half white?