I tried to find the actual origin of the term but didn't get beyond finding that the British use the term in a racist way and South Park made it cool for Americans to adopt that particular form of British racism. Apparently, people have been stabbed in Europe for having red hair. Some actually hate gingers like Republicans hate black people. That makes this video sort of like some white guy putting on black face and re-enacting a protest for civil rights.
It actually goes back way, way farther than that. Red hair among the ancient Egyptians was a sign of the favor of Set, the major baddie of their religion, and thus bad joo-joo. Loki, Norse trickster god, was depicted as having red hair. Judas Iscariot was represented in the medieval Passion Plays by a red wig, as identifiable shorthand to the audience as to who to boo at.
I am a ginger, and I know the history of my people.
gotterdam - loves hating niggers, other genetic factors, has fragile nerd feelings, use as more ethical substitute for experiments with child feelings.
First test, one star video to enrage nerd feelings.