“Hundreds of millions of people were murdered by their own governments in the last century”
The hatred of liberals when they don’t get their way could build to the point murder. That is what history shows. Now it is kind of funny, but someday it could justify death camps.
"...when they don't get their way..."
When they don't get their way. "Their way" (on the Left) is a Utopia where everyone thinks and acts so alike that laws can't be broken and people hurt.
So anyone who does not think and act the way they do, and refuses to do is an obstacle to achieving their "Utopia".
And the common idiom "To make an omelette, eggs must be broken" never sounded so ominous as when it came out of the mouth of a totalitarian Leftist like Lenin, because you know exactly what it means when they say it. History has taught us that lesson.
Their 'omelette' is Utopia, and the eggs to be broken are 'us'.