Christmas Party Vs. Holiday Party: Which Title Should Win Out?

I celebrate Christmas.  Realizing that Chanukah is also in December, I am not averse to also having a Chanukah party but why do we have to clump them together and call it a holiday party?  Kwanzaa is another December holiday that I do not celebrate but fully support.  Again, I’ll don my December finest and meet you at the Kwanzaa table but I’d like to celebrate Christmas separately. 

Is that so wrong? Offensive? Non-inclusive?

Weigh in.