Vind je dat die mij tegenspreekt? mmmm ik nochtans niet
So it's Hitler, right? Except that most of the deaths on his head were caused by the Second World War. Sure, he started it, but our society does not blanketly condemn the starting of wars (after all, we reserve the right to do it ourselves in a just cause), and we certainly don't consider killing armed enemy soldiers in a fair fight to be a crime against humanity. If we therefore confine ourselves to the cold-blooded murder of unarmed non-combatants, our table rearranges itself again:
TYRANT MURDERS
Stalin 20M
Hitler 15M
Mao 10M