And Christianity is ssooooo much better.... right?
"Religious zealotry over the centuries has been directly responsible for countless deaths, imprisonments, needless suffering, torturings, and the oppression of people on grounds of sex, race, colour, sexuality or belief.
A few obvious examples :
The Crusades.
The Inquisition.
Witch trials in Europe and America.
The Divine right of Kings (valid until killed by another Divinely-appointed King).
Missionaries destroying/converting smaller, "heathen" religions and cultures.
The demonization of other religions, e.g. Christianity demonizing Pagans ("They're devil-worshippers!"), the Romans demonizing Christians ("They're atheists and cannibals!").
Persecution of Heretics - e.g. Galileo for daring to suggest that the Earth orbits the Sun.
Children dying because their parents refused them medical treatment on religious grounds; relying instead on faith-healers and prayer.
Slavery, supposedly supported by scripture ("Slaves, obey your earthly masters with respect and fear, just as you would obey Christ.", St.Paul, Ephesians 6:5)
Holy wars - followers of different faiths (or even the same faith) killing each other in the name of their (benevolent, loving and merciful) gods.
The destruction of great works of art considered to be pornographic/blasphemous, and the persecution of the artists.
Censorship (often destructive) of speech, art, books, music, films, poetry, songs and, if possible, thought.
Persecution/punishment of blasphemers (Salman Rushdie still has a death sentence on him), and blasphemy laws in general.
The requirement of theism in order to stand for public office or to testify in court.
Serial killers believing they are doing the work of Satan (or sometimes Jesus).
Often-fatal exorcisms by priests believing they are destroying the work of Satan.
People suffering dreadful injury or death in the belief that their faith has made them invulnerable (e.g. people climbing into lion enclosures at zoos, with a Bible as protection).
Whole societies divided by minor differences in belief or doctrine, often resulting in violence.
Mass suicides of cult-members following a charismatic leader who believes the world is about to End (most recently, the Heaven's Gate and Solar Temple cults.
The attempted genocide of followers of a particular faith (e.g. the Jewish Holocaust, "ethnic cleansing" in former Yugoslavia).
Blood sacrifices to appease the Gods, or to ensure a good harvest. (The Aztecs made daily human sacrifices to ensure that the Sun would rise. Or did they? )
The practice of "female circumcision" (more accurately termed genital mutilation).
The discouragement of rational, critical thought (resulting in young-earth creationists, for example).
Uncontrolled population growth caused (or at least helped) by churches prohibiting birth-control and abortion. (You can also add : unwanted pregnancies, ill-fated forced marriages, and pregnant teenagers condemned to a life in mental institutions to avoid embarrassing their families.)
The spread of sexually transmitted diseases (e.g. AIDS) due to churches prohibiting the use of condoms.
Believers whipping, impaling, poisoning or crucifying themselves during religious festivals as a demonstration of their faith and piety.
Suicide bombers taught to believe that martyrs go straight to Paradise.
The indoctrination of children into the religion of their parents, giving them an arbitrary, life-long belief that is almost entirely dependent on their place of birth.
Women treated as second-class citizens or even slaves (article : Islam's Shame).
Pentecostal snake-handlers (Augusta Chronicle news article)
Persecution of homosexuals (Genocide of gay and lesbian youth)
Abuse of power, authority and trust by religious leaders (for financial gain or sexual abuse of followers and even children).
Minor religions ("cults") stockpiling weapons to defend themselves from the Armies Of Satan (i.e. the police and the government).
"Ah, but that was all years ago." you might say. Yes, it was. Unfortunately, a lot of these things still go on today. Look through the Freethought Today Newsletter for "In the News", "Religious Violence", and "You won't believe you're reading this" articles. You might be surprised at how many children are killed each year by well-meaning parents trying to exorcise demons, or people killed/imprisoned by fundamentalists for trivial infringements of "holy laws". People still persecute and kill each other safe in the knowledge that God is on their side, and that they are in the right, fighting for Holy Truth and Divine Justice.
It should be noted that many of these atrocities are caused as a direct result of religious belief - if the person did not follow a particular religion, or did not believe quite so strongly, then they simply would not have acted as they did. Not only is religion used to reinforce/justify a person's prejudices, it may also cause someone to commit an act of violence that they would otherwise have considered abhorrent (i.e. the mother who spent several hours beating her young daughter in order to force out the devil that was making the child playfully turn cartwheels in the house - resulting in the death of the child).
The benefits of religion (many of which may be achieved without religious belief) can include spiritual well-being, charitable works, a sense of meaning and purpose, the bringing together of communities, comfort in times of distress and the (unconfirmed) promise of eternal life after death".
How does this weigh against the other side of the scales?