0 someone who believes that a particular type or group of people should lead or have control over other types or groups of people because they believe they are better: --
a white supremacist
He survived an effort of the sheriff to arrange his ambush by loudly offering driving directions, while white supremacists loitered nearby.
Male supremacists famously (and infamously) label the women iron-jawed angels.
It is an idea whose potential might appeal to the far right or the racial supremacists; it goes against the very notion of equality among human beings.
Noteworthy here is the rhetorical abandonment of white supremacists' dedication to one-party rule.