Dr Michael Huemer has a very nice refutation of Communism.http://www.owl232.net/economics.pdf
The idea is that Communism is based the the labor theory of value and he shows that that theory is incorrect.
I myself never saw much value in Communism since private property is a prime value in Torah. It is even encoded in the Ten Commandments, "Thou shalt not steal."
The left have never seen a regulation or tax they didn’t like.
Gun control. Again, fixing a social problem by stripping rights from the law abiding.
They side with criminals instead of civilization. Want to reduce wrongful convictions? Reform the justice system to focus solely on guilt or innocence instead of procedure.
They backed corrupt labor unions that threatened workers, killed reformers, and pushed rules that defended the laziest and most incompetent workers. Just read up on the futile efforts of the NYC school system to get rid of bad teachers.