At the moment it is illegal for them to do such a thing (at least in the US) for black people are a protected group (civil rights act etc). Other than for a sm

At the moment it is illegal for them to do such a thing (at least in the US) for black people are a protected group (civil rights act etc). Other than for a small number of reasons due to protected groups, businesses generally have the right to refuse business to anyone for any reason. Do I think Facebook should be allowed to block black people? No. Do I think Facebook should be allowed to block pseudonyms? Yes.