Perhaps it is best to look at Stalin's followers to see the difference between him and religious crazies who kill:
Stalin's followers did as he said because they were scared of him. And there were several attempts on his life.
Religious crazies do as their leaders say, because they agree with it.
There's a huge difference between being scared and doing something bad and doing something bad because the person believes it is the right thing to do.
If look at today's suicide bombers and those who kill in the name of religion, these people believe wholeheartedly this is the right thing to do. I don't know of any atheist snipers or suicide bombers. If there was one, it would be a huge media sensation, that would eclipse all other lone killers in the rush to prove atheism is the most terrible thing ever.
Currently, Islamic are probably doing the most bad things in the name of their religion. Not that the others haven't done their share, but right now Islam is front and center of the world's attention for doing bad staff. Your sister may feel the pressure not only in atheists' disapproval of her religion, but all the other religions as well. But really we are soft and loving compared to how many Christians feel about Muslims. At least we feel their religion is equally invalid as all the others - not conceived and executed by Satan like most Christians.
I'm just suggesting she may be feeling threatened not only by your lack of belief, but because the pretty much the whole non Muslim world doesn't like them much now. However, she can look on the bright side, since Islam is one of the largest religions in the world (and growing, I understand), she has a billion or two people she can friend on Facebook.
Good people can do bad things and bad people can do good things; but for people to commit atrocities, it takes religion.
Misquoting Stephen Weinberg.
apples to oranges man
gods' ak47's damage compared to a 3d landscaping high-tech scientifically tested app that betters the world
hello. throw in the difference between a water or farming engineer compared to a braindamaged and misguided throwback to nazi germany's culture of dominance instead common sense... ironically the only country to state they'll be phasing out nuclear energy replaced with green tech/grid solutions
Religion has had a negative effect on my way of life.
Yet another piece that promotes the myth that the monstrous communist dictatorships of the 20th Century were a result of Atheism while discounting the actual ideological basis for those regimes. Stalinist Russia, Maoist China, and Pol Pot's Cambodia were all ruled by Dictators and had effectively established personality cults around their rulers. Just because communism rejected traditional religious beliefs that competed and threatened communists and their philosophies doesn't make those sorts of societies the end result of Atheism as an ideological stance. The communist regimes in USSR, China and Cambodia were built on communist ideas and the crimes of those regimes were due to communist extremism. "Atheist extremism" doesn't make any sense without some sort of ideology to become extreme in favour of. Suggesting that Atheists (who do not subscribe to some political extremist view, I've never met one of those myself) would create anything even remotely like those despotic communist regimes is an insult to the many progressive, rational, democratic, secular, humanist, science-based non-religious people that have lived and worked to make the world better ever since the European Enlightenment. Atheists (at least the hundreds I've met) don't want a tyrannical non-religious regime any more than we want a tyrannical religious one. Both are equally unpleasant.So please stop promoting the nonsensical myth that the progressive, democratic, rational, ethical, scientifically minded, humanistic non-believers of faith-based religious beliefs (like myself) should take any responsibility for despotic regimes that were based on values completely different to ours - just because Atheists and communists reject organized religion.