There is a lot of false information and social beliefs out there about atheists. This is the cause of the majority of the hate and prejudice felt towards atheists. Below are answers to the most common false assumptions about atheists.
A fair site for Christians by Christians about Atheists
CHRISTIAN APOLOGETICS & RESEARCH MINISTRY: Atheism
"Calling Atheism a religion is like calling bald a hair color."
Unlike a religion, atheism is not organized under a common doctrine (belief system). The only shared opinion among atheists is the nonexistence of a deity. There are a few common beliefs among atheists such as views regarding morality, religion and spirituality, but these beliefs vary greatly and are outside the definition of atheism and thus are not required to be an atheist.
Largely, atheism remains unorganized and as some would say, "organizing atheists is like trying to heard cats".
For the most part, immorality and morality are subjective. Every culture, civilization, belief system, family and individual has their own definition of what being moral means. There are however a few common ideas derived from natural laws that are considered immoral such as deceit, theft, murder any any other kind of caused suffering (see Humanism).
Statistically speaking; atheists make up a smaller percentage of the prison population than the general population and have a lower divorce rate than the major religions.+
There is no evidence that atheists are any less moral according to their society’s cultural beliefs than those of the society who subscribe to a religious doctrine. Most atheists consider themselves moral. Many atheists call themselves Secular Humanists; they adhere to a set of beliefs that promotes human values without specific allusion to religious doctrines.
"Can Atheists be ethical?
The answer to this question is a definite, 'Yes.' ...They are subject to the same laws of our country (and other countries). They have a sense of right and wrong. They must work with people and being unethical in society would not serve them very well. It is practical and logical for an atheist to be ethical and work within the norms of social behavior. Atheists, generally, are honest, hardworking people."
+ U.S. population, see statistics page for further information.
As stated above (Is Atheism a religion?), atheists do not subscribe to a common doctrine (belief system). Beyond that, Satan is part of the Christian belief system. If an atheist were to believe in the Christian doctrine, he would also most likely have to believe in God and therefor would not be an atheist.
A few atheists do side with Satanists because they believe in the Humanistic and anti-Christian parts of the Satanic doctrine. This however is not common and most Satanists are theists.
Atheists are also commonly accused by Christians and other theists as being the workers of Satan (evil) or of being guided by Satan (evil). As far as I know we are all acting of our own free will.
Atheism as a whole is not derived from psychological conditions such as depression. Certainly there are some who act out and turn their back on the church due to depression and some join the church due to depression but those cases are not typical. In general, most non-believers live healthy lives and reject faith based on reason rather than emotional problems.
If believers are in general, happier than non-believers, that says just as much about the psychological effects of religion in numbing the mind. See 'God and the Brain'.
"The fact that a believer is happier than a skeptic is no more to the point than the fact that a drunken man is happier than a sober one." - George Bernard Shaw
An argument that only those who believe they are protected by God are true patriots and are brave enough to fight for their country. Simply not true. Sure atheists are smart enough to realize their mortality, but will and do defend their country and their beliefs.