Person.
Because by distancing yourself and ringfencing a certain group of society you are (even subconciously) being prejudiced. And whatever that prejudice is based on will be what you are then labelled - race:racist, sex:sexist.
However the paradox of this is that if someone labels you racist, or sexist, or homophobe, etc. then they themselves are being prejudiced.
If someone is a prick though, by all means label them a prick!