Communism is optimism

The main problem with communism is that it thinks too highly of humans. It naively thinks humans will become willingly classless. Its driven by the thought that such a utopian society can exist. When science paints a completely different reality. At the end of the day, the human is an animal…acting mostly on darwinism. Communism has legit criticisms of capitalism, no doubt. But it makes sense why communism has largely failed. The human, like the animal, is too ruthless for communism (or utopia) to be achieved.