I'm not a christian but this is wrong. The three countries that killed the most people in the last 100 years are China under Mao, Russia under Lenin and Stalin and Germany under Hitler. All four of those leaders were atheists. In fact atheists have killed more people than anyone. All of the wars before the 20th century could not add up the killing done then and done mostly by atheists.

It is a sad fact that atheists and anti religious people ignore at their own peril.