No more time today.. But of your 50 million from WW2, 
at least 6 million would be the German Jews killed for religious reasons.. 
Another 1 million Serbian jews killed in Croatian-run death camp at Jasenovac by your own links.. 
Muslims k. by Chetniks in Foca-Cajnice: 
Aug. 1942: 2,000 
Feb. 1943: 9,000
Killed by Tito, 1945-46: 250,000 in shootings, camps and marches.
Mazower, Dark Continent 
Serbs k. by Ustase: at least 334,000. 
Collaborators k. by Tito, postwar: up to 60,000
religious reasons.. 
Romania: 
Rummel: 484,000 genocides under kings Carol & Michael (1938-48) incl. 302,000 Jews. 
Robert Kaplan, Balkan Ghosts (1993): 185,000 Jews from Bessarabia and Moldovia murdered in "the only non-German-run extermination camp in Europe".
More religious reasons.. 
Also, half of the 50million deaths are civilian and many are contributed to famine.. Not dieing from a bullet.... 50 million is not the correct number to use in your argument..