No, because partying, decorating trees and giving presents has nothing to do with pretending to be religious.
--Or sipping Glühwein in Germany, or dressing up as Krampus to frighten children in Austria, or putting your shoes out for Stekkjarstaur, Hurðaskellir, and the rest of the yule lads in Iceland, or swinging at a Piñata in Mexico, or putting Nisser figurines in you window in Denmark, or barbecuing fish and shrimp on the beach in New Zealand, to setting off fireworks in El Salvador, the observances are pretty far removed from American fundamentalism.