It is getting tough these days to decipher intentions of those who wish to combat racism with racism, however was definitely not the intention of OP. One could

It is getting tough these days to decipher intentions of those who wish to combat racism with racism, however was definitely not the intention of OP. One could start a business with their family, friends (who are likely to be the same race), or even other interested people in their community. Finding good founders is quite hard, to narrow it by race is even harder, but that shouldn't discourage underrepresented people who share similar values to organize.