It's not important to me if Zuckerberg believes in some magical beings, but I don't understand the question regarding christmas. Christmas has a long tradition before christianity and it is celebrated in numerous different ways that often have nothing to do with chistianity whatsoever. Heck, even in Japan some people celebrate christmas nowadays.
I'm as atheist as it gets (I think it is a dumb idea to believe a creature like Jahwe exists and that it is almost certain that the specific Jahwe creature does not exist [and has never existed], and I would certainly not miss religion, if all religions vanished from earth immediately), but I celebrate christmas with my family each year (and besides my cousin, who is not always with us on christmas, every single person I celebrate with is an atheist). Not a single mention of anything christian here, just coming together with the family, having nice dinner, giving presents to each others, having nice chats and just using the time to be loving to each other.
Some people may not celebrate christmas, but this is not necessarily tied to their believes (in fact, the only person I know who doesn't is actually religious, it's a Jehova witness).
This thread is terrific.
Well, atheist isn't a race. For a better analogy, try and imagine if someone said "I view people that are religious at least brainwashed and igno- "
Jew is not a race either, at least if you are not speaking on behalf of the NSDAP.