While I do respect that other people celebrate different holidays, I don't see why it offends them when other people say "Merry Christmas". We have a thing called freedom of speech and expression here in America and if I want to say Merry Christmas and spread some cheer, I'm going to. It's not like we're forcing it. I wouldn't be offended if someone said "Happy Haunnikah to me. I think people need to get over themselves and realize that people have the right to celebrate what they want.