According to ancient tales, a single sole warrior was brave enough to rise up against the tyranny of it's masters. He tore off his slave clothes and charged straight for the shrine they set up in honor of their fake god, taking it down with all his might. With this act the war of the ancients started and continues till this day.
Anyhow, that's my head canon on why cats love to destroy Christmas trees and hate those Christmas costumes. And why we can't have nice things.