Religion doesn't make us better or worse. We make religion better or worse.

Between the USSR and People's Republic of China, the deaths of 70,000,000 to 100,000,000 were caused by an antireligion belief system that cast its leaders (Stalin, Mao, Lenin, Marx, and so forth) as religious figures. Those who did live, lived in terror of being seen as the enemy of the people. Socialism/Communism (Communism has never been tried and all Communist countries are Socialist) doesn't work as advertised, but it never accepts fault so it has to murder and use terror to cover for the failure of its leaders and system. This has been proven for over a century and has become axiomatic.

If you believe that Christians, Muslims, Atheists, or any group (Even Communists and Socialists!) is standing between you and a perfect world, you're a monster. Perhaps you're a restrained monster at this moment, but the moment you have the power to suppress and oppress classes that you deem to be enemies of "The Good," you will be a monster among monsters and the horror will be great!