I suppose you are referencing these "facts:"

"Finally, some believe that religion is the source of all war. Note that the Revolutionary War, War of 1812, Mexican War, World Wars I and II, Korean War and Vietnam War were not religious wars.

Atheist leaders in China, Russia and Germany took well over 100 million lives just in the 20th century."

First of all, if you think these conflicts had nothing to do with religion your sadly mistaken.  Second, just because an atheist did this or did that doesn't somehow put faith-based ideologies on equal footing as evidence-based ways of knowing.  

What we do know is that when people rely on unsupported fantasies to navigate the world we give ourselves the best chance for disaster and failure.  If we stick to evidence-based ways of knowing we give ourselves the best chance to flourish.  In fact the happiest and healthiest democracies around the world are the least religious and just the opposite is true with the most religious nations.