https://www.hawaii.edu/powerkills/COM.ART.HTM
Democide: The murder of any person or people by a government, including genocide, politicide, and mass murder.
How can we understand all this killing by communists? It is the marriage of an absolutist ideology with the absolute power. Communists believed that they knew the truth, absolutely. They believed that they knew through Marxism what would bring about the greatest human welfare and happiness. And they believed that power, the dictatorship of the proletariat, must be used to tear down the old feudal or capitalist order and rebuild society and culture to realize this utopia. Nothing must stand in the way of its achievement. Government--the Communist Party--was thus above any law. All institutions, cultural norms, traditions, and sentiments were expendable. And the people were as though lumber and bricks, to be used in building the new world.
approximately 110 million killed in the name of communism.