Publicists should take lessons from the Rapture Right. In lieu of the humdrum press release, branded tchotchkes or complimentary tickets, the purportedly hardcore, right-wing Christian duo simply threaten boycotts. Responses from the media run the gamut from “Huh” to bona fide alarm and even the occasional 700-word column in an alternative-news-weekly. The post-goth garbed Rapture…