Bad news for DUmbasses:
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 
None of the above are capitalistic.