I fucking hate this attitude. America is a majority Christian country and even people who aren't religious here celebrate Christmas, because it's just part of our history and national identity.

Last year, I happened to be traveling for work in a city that had a large Middle Eastern population during Ramadan. Rather than get pissed off that somebody was celebrating a holiday that I wasn't a part of, I hit up a middle eastern restaurant after dark, and they had an awesome spread of food for very reasonable price.

People living their lives differently than you isn't a reason to take offense.