The world is a strange place. In America, Christianity is the most common religion. There are Buddhists, Muslims, and others. And there are Atheists. I am one of these persons. Atheists are not a common group of people, and are sometimes even shunned by other religions. Pretty much all religions involve gods and spirits, so a group of people who believe there are no gods or spirits, would understandably seem scary and satanic. But I don't think this gives people the right to treat atheists unfairly. When you think about it, it's just as bad as racism against black people.
If Christianity is such a great and fine religion, why are they so opposed to those different from them? It is human nature to be against the unknown, but shunning them is so primitive.
In my experience, if I tell someone I don't believe in god, (and they are Christian), they say "oh, you're going to hell," or, "Whoa, you're in trouble now!"
This really annoys me. If you believe in God, I have no problem, but if you insist he exists to someone and try to change their beliefs, I do have a problem. If I am atheist, don't tell me something is going to happen, that would only happen if there was a god. It doesn't make sense, so to me, you're just acing like I believe in God.
I predict that in the future, atheism will be much more widespread. Tis is because more and more science is proving things about the past: evolution, the big bang; all of these are explaining how the world started, without there being a god.