Science of Socialism undone by science

It turns out the the "science" of socialism has been countered by actual science.

German scientists conducted a study finding that humans do not like freeloaders.

Groups which could punish those who freeloaded did and the researchers found that " institutions able to police themselves foster cooperation between their members and out-compete institutions that let freeloaders go unpunished, the scientists say."

Quoting the Ox: "Duh"