Millennials get blamed for killing a lot of things: napkins, marriage, department stores. The raisin has been inching closer to that kill list. So a couple of years ago, the new CEO of Sun-Maid tried changing the fortune of the lowly American raisin, which come exclusively from the Central Valley. He ended up getting harassing phone calls, intimidating letters, and even a few death threats from what he describes as the “raisin mafia.”