do we have stats to share to come to this conclusion.. , most of the wars were politically motivated , we human have weakness and we use any means to exploit it , so for e.g even when religion decline for last 200 year or so we still have world war 1 and 2 and Stalin, Hitler, mao,..

Religion Job is to make human aware of who he is , make connection with God , explain God , establish human and nature relationship , and provide morality , purpose of life ,...

Religious books have been corrupted and is causing harm ( tried to argue in below article) but does not mean religion is bad, that is a human problem that they have gathered and pass on to next generation

https://medium.com/@mfakhar2000/jesus-is-sad-and-ashamed-926b0dc2b1a3