(a) they believe the human race is somehow divided up into other races based on such a very small range of our various genetic differences as they can ignorantly observe.
(b) they seriously believe themselves to belong to one of these fantasized archaic groups.
(c) they are under the illusion that their imagined groups is somehow 'superior' to other imagined groups, and that they themselves benefit from this madness.
Frankly, they are not fit to offer opinions or vote. They are nutters.