Yep, because militant atheists never killed anyone in Europe, Russia, Ukraine, China, Korea, Vietnam, or Laos.  Oops, they actually killed 100 million people.
Communism, fascism, socialism, Liberalism, and progressivism (all the same thing in a slightly different tint) are religions in my book. The worst kind of religion, making government god. 
The worst genocides of the 20th Century 
Mao Ze-Dong (China, 1958-61 and 1966-69, Tibet 1949-50) 49-78,000,000 
Jozef Stalin (USSR, 1932-39) 23,000,000 (the purges plus Ukraine's famine) 
Adolf Hitler (Germany, 1939-1945) 12,000,000 (concentration camps and civilians WWII) 
Hideki Tojo (Japan, 1941-44) 5,000,000 (civilians in WWII) 
Ismail Enver (Turkey, 1915-20) 1,200,000 Armenians (1915) + 350,000 Greek Pontians and 480,000 Anatolian Greeks (1916-22) + 500,000 Assyrians (1915-20) 
Pol Pot (Cambodia, 1975-79) 1,700,000 
Kim Il Sung (North Korea, 1948-94) 1.6 million (purges and concentration camps) 
Menghistu (Ethiopia, 1975-78) 1,500,000 
Yakubu Gowon (Biafra, 1967-1970) 1,000,000 
Leonid Brezhnev (Afghanistan, 1979-1982) 900,000 
Jean Kambanda (Rwanda, 1994) 800,000 
Suharto (East Timor, West Papua, Communists, 1966-98) 800,000 
Saddam Hussein (Iran 1980-1990 and Kurdistan 1987-88) 600,000 
Tito (Yugoslavia, 1945-1987) 570,000