It is entirely possible (maybe inevitable) to be biased, prejudiced and discriminatory without any self-awareness that you are so; but you literally cannot be a racial supremacist, which is an ideology, without knowing it.
Biography, Wikipedia, Wiki,
It is entirely possible (maybe inevitable) to be biased, prejudiced and discriminatory without any self-awareness that you are so; but you literally cannot be a racial supremacist, which is an ideology, without knowing it.