Democide

J.R. Dunn calls it the most disturbing things he has come across in 20 years of writing history.

Almost all of the large-scale genocides of the past century have occurred during Democratic administrations.

Democide: Democrats and the Awful Truth of Genocide

Another troubling point is that in most cases, very little was done in response to the crises. Many of the episodes, as we've grown used to seeing, are accompanied by open denial or an almost willful refusal to admit that any such thing is happening. Denial is usually the product of individuals or groups sympathizing with or aiding the killers - the Communist Party during the 1930s, the New Left following the Vietnam War. Unwillingness to believe, though much more common, is not often a product of evil intent, but simply an inability to acknowledge that horror on such a scale is possible. (This is best illustrated by Justice Felix Frankfurter's response to an eyewitness of the Holocaust in 1943: "I cannot believe you. I'm not saying that you're lying. But that I cannot believe you.") While understandable, this remains a human failing and needs to be faced as such.