@ajbrun: If you believe that religious beliefs can cause one to commit terrible things, beyond what a non religious person is capable of, then wouldn't it suggest the same influence in the other direction could result in a person living a more charitable life beyond what a non-religious person would?
I'll go no either way. People are 'wired' differently. To say that you do not need religion to be a good person is as vague and valid as saying that religion do not make a bad person. You can have religious fanatics, you can have non religious yet crazed individual. You can have a devout saint who may or may not practice a religion. You also have people who are religious/non religious to varying degrees (different level of influences), and those people can be 'good' or 'bad'. I've not really looked for, hence do not know whether religion is more likely to cause someone someone to go good/bad or if there is absolutely no correlation whatsoever. And while you've noted the negative aspects of Christianity, if you were to do a complete and comprehensive listing of the positive, negative and neutral aspect of its teaching, would you actually say that the teaching is overall bad?
Religion has caused a number of problems in society, but does it really mean that society would be better without it? Or would it only mean that we'll find new ways to generate conflicts? And would those conflicts be better or worse? In addition to the 'if else' question that none of us can scientifically answer, is there any evidence that religion is causing more harm than good? I am willing to accept a proper research paper on on this matter, but I can't simply take a one-sided view of when things go wrong alone.