Why are atheists rude to Christians?

I see atheists here and in real life hating Christians just because they believe in God and why I dunno. Atheists are ignorant, rude, disrespectful, malevolent and hateful towards Christians while Christians are benevolent, respectful, and beneficent. Why all the hate also, we never have did a da** thing to you to deserve to be bashed and hated on; if it weren't for religion we would not even serve a purpose to live, nothing can create nothing atheists; you are soo smart.