Imagine if you could never be quite sure if the girl in accounts gave you the brush-off, not because she didn't fancy you, but because of subliminal prejudice. Imagine if there was a 300-year history in which racist words had been used to persecute your ancestors. Wouldn't you want society to take a stand against all that?It could be argued that gingerism fits within the above boundaries, and therefore, is comparable to today's levels of racism. As for the 300-year historical use of racist words? For gingerism, 300 years is just a recent history.
Source: Times Online