# "Self-promotion": Some individuals place themselves in positions of power and privilege through promotion of specific religious views. Such self-promotion has tended to reduce public confidence in many things that are called "religion." Similarly, highly publicized cases of abuse by the clergy of several religions have tended to reduce public confidence in the underlying message.
# "Promotion of ignorance": Many see religion as a primitive attempt to understand nature and the world at large, and that it has since been superseded by scientific inquiry. They therefore conclude that religious beliefs, founded in superstition and ignorance, merely perpetuate said ignorance onto future generations for the sake of tradition.
# "Childhood indoctrination and ethics": Many atheists, agnostics, and others see early childhood education in religion and spirituality as a form of brainwashing or social conditioning, forcing a child to accept certain ideas before he or she is old enough to fully understand them and make an informed decision whether or not to agree. Some argue that simplistic absolutism taught by some religions impairs a child's moral capacity to deal with a world of complex and varied temptations which, in reality, is far different from what they have been brought up to believe.
# "Unappealing practices": Some people consider religious practices and ceremonies to be distasteful, boring, antiquated, or needlessly arcane, and reject religion for that reason.
# "Detrimental effect on government": Many atheists, agnostics, and others believe that religion, because it insists that people believe certain claims "on faith" without sufficient evidence, hinders the rational/logical thought processes necessary for effective government. For example, a leader who believes that God will intervene to save humans from environmental disasters may be less likely to attempt to reduce the risk of such disasters through human action. Also, in many countries, religious organizations have tremendous political power, and in some countries can even control government almost completely. Disillusionment with forms of theocratic government, such as practiced in Iran, can lead people to question the legitimacy of any religious beliefs used to justify non-secular government.
# "Detrimental effect on personal responsibility": Many atheists, agnostics, and others believe that many religions, because they state that God will intervene to help individuals who are in trouble, cause people to be less responsible for themselves. For example, a person who believes that God will intervene to save him if he gets into financial difficulties may conclude that it is unnecessary to be financially responsible himself. (Some believers, however, would consider this a misrepresentation of religion: they would say that God only helps people who take initiative themselves first.) This attitude can be taken to extremes: there are instances of believers refusing life-saving medical treatment (or even denying it to their children) because they believe that God will cure them. Many atheists, agnostics, and others also find the assertion that 'circumstances are overpowering because they are the will of God' to be a negation of personal responsibility.