If you're really having that many troubles with a group of people this large, its your own problem, not theirs. Ever thought of saying "lol I'm atheist I don't really care"?
The amount of disrespect in your post is >9000.
I've said that quite a few times, in fact, the only thing I've yet to do is to kick them out of the house (if they find a way in).
And no, there's nothing wrong with me. They become like that once they find out I'm atheist. So Christianity is the problem right there.