Tyranny Leads to Mass Murder
During the 20th century, we saw the rise of two primary modes of totalitarian government: communism and fascism (https://en.wikipedia.org/wiki/Totalitarianism). The proponents of both claimed they were creating their governments to right certain wrongs. They claimed they were doing it for the people. They claimed they were doing it because it was right. And yet tens of millions of people were murdered or otherwise met premature deaths through forced labor or starvation.
The leaders of these movements claimed to understand the lower and middle classes. They spoke flattering words, blaming some group or another for the plight of the listeners. They promised unworkable solutions to their countries' problems. And yet, once they rose to power they immediately killed their competition, and their detractors. They eliminated the free press or pretended it was free but controlled it completely. They pushed propaganda at work and at school. In some cases, they eliminated traditional churches so as to eliminate those ideas that would naturally oppose them. They encouraged lawless killing by youth groups, then proceeded to round up and murder that group when their usefulness ended. Murder for power never ends well for the murders, only the puppet masters.
Today, totalitarianism on the Right is universally seen as evil, and yet, totalitarianism on the Left is not, with the usual excuse being, “it hasn’t been done correctly yet.” Wikipedia lists over 150 former Communist States (https://en.wikipedia.org/wiki/Communist_state). Many of these were factions with only slightly differing views fighting for control. Others were long-lasting. Most tried to implement the basic communist doctrines. They failed and nearly all resulted in the deaths of their own people in the millions. There are only four such governments today. Or put another way, that kind of government is not sustainable. Other totalitarian regimes likewise failed (https://en.wikipedia.org/wiki/List_of_totalitarian_regimes) except for three examples continuing today.
Authoritarianism is nearly as bad. (https://en.wikipedia.org/wiki/Authoritarianism)
The more a government moves toward authoritarianism, the more likely it is for that government to murder its own people. This is called Democide.
How much mass murder will the 21st century hold? Will it out-do the 20th? I believe it will. Too many people don't know about the past and will be swept up in similar events, having not inoculated themselves against taking part.
Check out the "Ways We Mass Murder" list on the left for more info.