Well, look at it this way. In this politically-correct world where thugs are would-be martyrs, zombies are the only folks left without civil rights. The government and media have done their best to stop stereotyping- most bad guys in DHS commercials, DHS memos and movies are white. However, 20 years from now, when whites are a minority, lawyers are going to clean up on the lawsuits filed by the poor helpless white folk seeking reparations. At least with zombies (ebola zombies don't count, as they're not really zombies), we don't suspect reanimation of the dead in the foreseeable future, so they make the ideal bad guy. You can talk in zombonics, go to parties in zombie face, make fun of their food (brains) and make jokes about them with impunity, because so far, there's no collective of civil activists who'll come to march in your community should you offend the zombies.