Vampire craze

The Anti-Slayer movement was a pro-vampire/anti-Slayer world order ushered in sometime after the Battle at the Hellmouth in 2003.

Description
The movement presumably began sometime after the destruction of Sunnydale, when the Scooby Gang activated all Potential Slayers across the world to combat the First Evil and its army of Turok-Han. The Scoobies and their Slayers were subsequently deemed a terrorist organization. With humans and demons across the world wary of the expanded ranks of Slayers, the Twilight Group was gathered to stop them and bring about the end of magic. The actions of the rogue Slayer Simone Doffler and her criminal gang

When Harmony Kendall was caught on camera biting Andy Dick and subsequently got her own reality show, the existence of the supernatural was exposed to the world at large, and vampires became a subject of a fad, whereas the Slayers were deemed pariahs, Buffy Summers in particular being dubbed the "worst person in the world."

After the destruction of the Seed of Wonder, the anti-Slayer movement has lessened somewhat; though the world is still crazy about vampires and the remaining Slayers are still monitored by the government, said Slayers are no longer viewed as the threats they once were.