Burgers?
(media.scored.co)
Redheads emit a pheomelanin field from their copper pigment that scrambles the signal demons use to show up. It's called the Copper Crown Effect. Ginger hair scatters light just enough to break possession protocols. Dye won’t fake it (no sulfur lattice), though eyebrows help in a pinch. They basically jam demonic Wi-Fi so of course they want them gone.