His point wasn't that Candace Owens is the only black conservative but that she signaled a shift in black people more broadly joining the conservative movement/changing their voting behavior (the promises of her BLEXIT nonsense).

EDIT: I'd compare it to how some executives desperately grab on to the idea that you can take something that fundamentally appeals to men/boys and tweak it to bring in women/girls without ruining the original. It's an intoxicating idea just like the idea of black people not voting 85%+ for Democrats.

His point wasn't that Candace Owens is the only black conservative but that she signaled a shift in black people more broadly joining the conservative movement/changing their voting behavior (the promises of her BLEXIT nonsense).