What is the connection between witchcraft and communism

The Salem Witch Hunt and the McCarthy Era had a lot in common.  Both periods were characterized to be in fear of certain force.  In rumors of villagers practicing witchcraft spread fear and panic among the settlers.  The Cold War brought fear of communism spreading to the United States and as well as other parts of the world.  Both events played on people’s fear and suspicion.  As a result people were spied upon by governments in both eras.  Many were convicted and killed in the Salem Witch Hunts.  The McCarthy  era saw the surveillance and arrest of several American citizens whose lives were destroyed by accusations of being a communist supporter or spy. 

For two years Thoreau lived by the shore of Walden Pond by C.working the land by himself.
It was a kind of experiments for him, a simple life at Walden Pond. He used this experience to write about and describe its philosophy of life, politics, and nature. This inspired his work "Walden"