Frankly, no one has the right to be surprised by socialist atrocities.
Mass death is the very PURPOSE of socialism.
You are correct only to the extent that the peddling of socialism/communism/Marxism has been a fairy-tale device to keep people's eyes off of the real goal of statism that is autocracy on steroids -- the system of government where every aspect of human life is utterly controlled by the state. The other forms all promise some paradise after they get a hold. Statism is power seeking for power's sake.
Maybe it will begin to dawn on people what Statism intends to do. However, one of the earliest proponents of the power state that would reduce the Earth's population, H.G.Wells, had his Eloi marching into the rendering factory totally oblivious to their fate. So far, his vision seems to be scary accurate!
My plea to you is try to use the word "Statism" more frequently. Do it for no other reason than to provoke inquiries such as "WTF are you talking about HOP?" ;^)