1. You are allowing others to celebrate their own holiday, by giving you gifts. Just say thank you.

2. Do you think hypocrisy is worse than being a social pariah? Just say thank you.

3. Indeed, Christmas is a cultural holiday. Think of it as a winter solstice party! You don't have to tell anyone that's why you accepted their gifts. You don't have to make a scene. Just re-frame it in your mind, and say thank you.

It's better to be an atheist with a heart than an atheist who never, ever indulges in hypocrisy.